Merge remote-tracking branch 'origin/master'

.gitignore

@@ -4,6 +4,5 @@
 .idea/workspace.xml
 /out
 .DS_Store
-/python/helpers/python-skeletons
 /test-system
 /test-config

.idea/scopes/util_rt_dependencies.xml

@@ -1,3 +1,3 @@
 <component name="DependencyValidationManager">
-  <scope name="util-rt dependencies" pattern="(lib:*..*||src:*..*)&amp;&amp;!lib:java..*&amp;&amp;!lib:javax..*&amp;&amp;!src[util-rt]:*..*" />
+  <scope name="util-rt dependencies" pattern="(lib:*..*||src:*..*)&amp;&amp;!lib:java..*&amp;&amp;!lib:javax..*&amp;&amp;!src[util-rt]:*..*&amp;&amp;!src[annotations]:*..*" />
 </component>

java/java-impl/src/com/intellij/refactoring/safeDelete/JavaSafeDeleteProcessor.java

@@ -223,7 +223,7 @@ public class JavaSafeDeleteProcessor extends SafeDeleteProcessorDelegateBase {
     if (element instanceof PsiMethod) {
       final PsiClass containingClass = ((PsiMethod)element).getContainingClass();
 
-      if (!containingClass.hasModifierProperty(PsiModifier.ABSTRACT)) {
+      if (containingClass != null && !containingClass.hasModifierProperty(PsiModifier.ABSTRACT)) {
         final PsiMethod[] superMethods = ((PsiMethod) element).findSuperMethods();
         for (PsiMethod superMethod : superMethods) {
           if (isInside(superMethod, allElementsToDelete)) continue;

java/java-psi-impl/src/com/intellij/codeInsight/javadoc/JavaDocInfoGenerator.java

@@ -639,13 +639,15 @@ public class JavaDocInfoGenerator {
           String text = o.toString();
           PsiType type = variable.getType();
           if (type.equalsToText(CommonClassNames.JAVA_LANG_STRING)) {
-            text = "\"" + StringUtil.escapeLineBreak(StringUtil.shortenPathWithEllipsis(text, 120)) + "\"";
+            text = "\"" + StringUtil.escapeStringCharacters(StringUtil.shortenPathWithEllipsis(text, 120)) + "\"";
+          }
+          else if (type.equalsToText("char")) {
+            text = "'" + text + "'";
           }
-          else if (type.equalsToText("char")) text = "'" + text + "'";
           try {
             return instance.getElementFactory().createExpressionFromText(text, variable);
           } catch (IncorrectOperationException ex) {
-            LOG.error(text, ex);
+            LOG.info("type:" + type.getCanonicalText() + "; text: " + text, ex);
           }
         }
       }

java/java-tests/testData/codeInsight/completion/normal/MulticaretCompletionFromNonPrimaryCaretWithTab.java

@@ -0,0 +1,4 @@
+class Foo {{
+  <caret>blah
+  // <caret>blah
+}}

java/java-tests/testData/codeInsight/completion/normal/MulticaretCompletionFromNonPrimaryCaretWithTab_after.java

@@ -0,0 +1,4 @@
+class Foo {{
+  return<caret>
+  // return<caret>
+}}

java/java-tests/testSrc/com/intellij/codeInsight/completion/NormalCompletionTest.groovy

@@ -1428,6 +1428,10 @@ class XInternalError {}
     myFixture.assertPreferredCompletionItems(0, "arraycopy")
   }
 
+  public void testMulticaretCompletionFromNonPrimaryCaretWithTab() {
+    doTest '\t'
+  }
+
   public void "test complete lowercase class name"() {
     myFixture.addClass("package foo; public class myClass {}")
     myFixture.configureByText "a.java", """

java/java-tests/testSrc/com/intellij/codeInspection/SingleInspectionProfilePanelTest.java

@@ -55,6 +55,7 @@ public class SingleInspectionProfilePanelTest extends LightIdeaTestCase {
     assertEquals(1, InspectionProfileTest.countInitializedTools(model));
 
     assertEquals("foo", getInspection(profile).myAdditionalJavadocTags);
+    panel.disposeUI();
   }
 
   public void testModifyInstantiatedTool() throws Exception {
@@ -82,6 +83,7 @@ public class SingleInspectionProfilePanelTest extends LightIdeaTestCase {
     assertEquals(1, InspectionProfileTest.countInitializedTools(model));
 
     assertEquals("bar", getInspection(profile).myAdditionalJavadocTags);
+    panel.disposeUI();
   }
 
   public void testDoNotChangeSettingsOnCancel() throws Exception {

platform/core-api/src/com/intellij/openapi/application/ApplicationInfo.java

@@ -15,6 +15,7 @@
  */
 package com.intellij.openapi.application;
 
+import com.intellij.openapi.components.ServiceManager;
 import com.intellij.openapi.util.BuildNumber;
 
 import java.awt.*;
@@ -52,7 +53,7 @@ public abstract class ApplicationInfo {
   }
 
   public static ApplicationInfo getInstance() {
-    return ApplicationManager.getApplication().getComponent(ApplicationInfo.class);
+    return ServiceManager.getService(ApplicationInfo.class);
   }
 
   public static boolean helpAvailable() {

platform/core-impl/src/com/intellij/openapi/application/impl/ApplicationInfoImpl.java

@@ -19,7 +19,7 @@ import com.intellij.ide.plugins.PluginManagerCore;
 import com.intellij.openapi.application.ApplicationNamesInfo;
 import com.intellij.openapi.application.PathManager;
 import com.intellij.openapi.application.ex.ApplicationInfoEx;
-import com.intellij.openapi.components.ApplicationComponent;
+import com.intellij.openapi.components.NamedComponent;
 import com.intellij.openapi.diagnostic.Logger;
 import com.intellij.openapi.util.*;
 import com.intellij.openapi.util.text.StringUtil;
@@ -40,7 +40,7 @@ import java.util.List;
 import java.util.jar.JarEntry;
 import java.util.jar.JarFile;
 
-public class ApplicationInfoImpl extends ApplicationInfoEx implements JDOMExternalizable, ApplicationComponent {
+public class ApplicationInfoImpl extends ApplicationInfoEx implements JDOMExternalizable, NamedComponent {
   private static final Logger LOG = Logger.getInstance("#com.intellij.openapi.application.impl.ApplicationInfoImpl");
 
   private String myCodeName = null;
@@ -175,14 +175,12 @@ public class ApplicationInfoImpl extends ApplicationInfoEx implements JDOMExtern
   @NonNls private static final String CUSTOMIZE_IDE_WIZARD_STEPS = "customize-ide-wizard";
   @NonNls private static final String STEPS_PROVIDER = "provider";
 
-  public void initComponent() { }
-
-  public void disposeComponent() { }
-
+  @Override
   public Calendar getBuildDate() {
     return myBuildDate;
   }
 
+  @Override
   public Calendar getMajorReleaseBuildDate() {
     return myMajorReleaseBuildDate != null ? myMajorReleaseBuildDate : myBuildDate;
   }
@@ -211,14 +209,17 @@ public class ApplicationInfoImpl extends ApplicationInfoEx implements JDOMExtern
     return getBuild().asString();
   }
 
+  @Override
   public String getMajorVersion() {
     return myMajorVersion;
   }
 
+  @Override
   public String getMinorVersion() {
     return myMinorVersion;
   }
 
+  @Override
   public String getVersionName() {
     final String fullName = ApplicationNamesInfo.getInstance().getFullProductName();
     if (myEAP && !StringUtil.isEmptyOrSpaces(myCodeName)) {
@@ -227,6 +228,7 @@ public class ApplicationInfoImpl extends ApplicationInfoEx implements JDOMExtern
     return fullName;
   }
 
+  @Override
   @NonNls
   public String getHelpURL() {
     return "jar:file:///" + getHelpJarPath() + "!/" + myHelpRootName;
@@ -247,14 +249,17 @@ public class ApplicationInfoImpl extends ApplicationInfoEx implements JDOMExtern
     return PathManager.getHomePath() + File.separator + "help" + File.separator + myHelpFileName;
   }
 
+  @Override
   public String getSplashImageUrl() {
     return mySplashImageUrl;
   }
 
+  @Override
   public Color getSplashTextColor() {
     return mySplashTextColor;
   }
 
+  @Override
   public String getAboutImageUrl() {
     return myAboutImageUrl;
   }
@@ -279,10 +284,12 @@ public class ApplicationInfoImpl extends ApplicationInfoEx implements JDOMExtern
     return myProgressTailIcon;
   }
 
+  @Override
   public String getIconUrl() {
     return myIconUrl;
   }
 
+  @Override
   public String getSmallIconUrl() {
     return mySmallIconUrl;
   }
@@ -293,18 +300,22 @@ public class ApplicationInfoImpl extends ApplicationInfoEx implements JDOMExtern
     return myBigIconUrl;
   }
 
+  @Override
   public String getOpaqueIconUrl() {
     return myOpaqueIconUrl;
   }
 
+  @Override
   public String getToolWindowIconUrl() {
     return myToolWindowIconUrl;
   }
 
+  @Override
   public String getWelcomeScreenCaptionUrl() {
     return myWelcomeScreenCaptionUrl;
   }
 
+  @Override
   public String getWelcomeScreenDeveloperSloganUrl() {
     return myWelcomeScreenDeveloperSloganUrl;
   }
@@ -325,30 +336,37 @@ public class ApplicationInfoImpl extends ApplicationInfoEx implements JDOMExtern
     return myEditorBackgroundImageUrl;
   }
 
+  @Override
   public String getPackageCode() {
     return myPackageCode;
   }
 
+  @Override
   public boolean isEAP() {
     return myEAP;
   }
 
+  @Override
   public UpdateUrls getUpdateUrls() {
     return myUpdateUrls;
   }
 
+  @Override
   public String getDocumentationUrl() {
     return myDocumentationUrl;
   }
 
+  @Override
   public String getSupportUrl() {
     return mySupportUrl;
   }
 
+  @Override
   public String getEAPFeedbackUrl() {
     return myEAPFeedbackUrl;
   }
 
+  @Override
   public String getReleaseFeedbackUrl() {
     return myReleaseFeedbackUrl;
   }
@@ -358,18 +376,22 @@ public class ApplicationInfoImpl extends ApplicationInfoEx implements JDOMExtern
     return myPluginManagerUrl;
   }
 
+  @Override
   public String getPluginsListUrl() {
     return myPluginsListUrl;
   }
 
+  @Override
   public String getPluginsDownloadUrl() {
     return myPluginsDownloadUrl;
   }
 
+  @Override
   public String getBuiltinPluginsUrl() {
     return myBuiltinPluginsUrl;
   }
 
+  @Override
   public String getWebHelpUrl() {
     return myWebHelpUrl;
   }
@@ -384,14 +406,17 @@ public class ApplicationInfoImpl extends ApplicationInfoEx implements JDOMExtern
     return myHasContextHelp;
   }
 
+  @Override
   public String getWhatsNewUrl() {
     return myWhatsNewUrl;
   }
 
+  @Override
   public String getWinKeymapUrl() {
     return myWinKeymapUrl;
   }
 
+  @Override
   public String getMacKeymapUrl() {
     return myMacKeymapUrl;
   }
@@ -405,6 +430,7 @@ public class ApplicationInfoImpl extends ApplicationInfoEx implements JDOMExtern
     return myAboutLinkColor;
   }
 
+  @Override
   public String getFullApplicationName() {
     @NonNls StringBuilder buffer = new StringBuilder();
     buffer.append(getVersionName());
@@ -423,6 +449,7 @@ public class ApplicationInfoImpl extends ApplicationInfoEx implements JDOMExtern
     return buffer.toString();
   }
 
+  @Override
   public boolean showLicenseeInfo() {
     return myShowLicensee;
   }
@@ -478,6 +505,7 @@ public class ApplicationInfoImpl extends ApplicationInfoEx implements JDOMExtern
     return ourShadowInstance;
   }
 
+  @Override
   public void readExternal(Element parentNode) throws InvalidDataException {
     Element versionElement = parentNode.getChild(ELEMENT_VERSION);
     if (versionElement != null) {
@@ -737,14 +765,17 @@ public class ApplicationInfoImpl extends ApplicationInfoEx implements JDOMExtern
     return new Color((int)rgb, rgb > 0xffffff);
   }
 
+  @Override
   public void writeExternal(Element element) throws WriteExternalException {
     throw new WriteExternalException();
   }
 
+  @Override
   public List<PluginChooserPage> getPluginChooserPages() {
     return myPluginChooserPages;
   }
 
+  @Override
   @NotNull
   public String getComponentName() {
     return ApplicationNamesInfo.getComponentName();
@@ -761,10 +792,12 @@ public class ApplicationInfoImpl extends ApplicationInfoEx implements JDOMExtern
       }
     }
 
+    @Override
     public String getCheckingUrl() {
       return myCheckingUrl;
     }
 
+    @Override
     public String getPatchesUrl() {
       return myPatchesUrl;
     }
@@ -781,14 +814,17 @@ public class ApplicationInfoImpl extends ApplicationInfoEx implements JDOMExtern
       myDependentPlugin = e.getAttributeValue("depends");
     }
 
+    @Override
     public String getTitle() {
       return myTitle;
     }
 
+    @Override
     public String getCategory() {
       return myCategory;
     }
 
+    @Override
     public String getDependentPlugin() {
       return myDependentPlugin;
     }

platform/editor-ui-ex/src/com/intellij/openapi/editor/colors/ex/DefaultColorSchemesManager.java

@@ -15,34 +15,25 @@
  */
 package com.intellij.openapi.editor.colors.ex;
 
-import com.intellij.openapi.components.NamedComponent;
-import com.intellij.openapi.components.ServiceManager;
+import com.intellij.openapi.components.*;
 import com.intellij.openapi.editor.colors.EditorColorsScheme;
 import com.intellij.openapi.editor.colors.impl.DefaultColorsScheme;
 import com.intellij.openapi.util.InvalidDataException;
-import com.intellij.openapi.util.JDOMExternalizable;
-import com.intellij.openapi.util.WriteExternalException;
 import org.jdom.Element;
 import org.jetbrains.annotations.NonNls;
-import org.jetbrains.annotations.NotNull;
 import org.jetbrains.annotations.Nullable;
 
 import java.util.ArrayList;
 import java.util.List;
 
-/**
- * @author max
- */
-public class DefaultColorSchemesManager implements JDOMExternalizable, NamedComponent {
+@State(
+  name = "DefaultColorSchemesManager",
+  storages = @Storage(file = StoragePathMacros.APP_CONFIG + "/other.xml")
+)
+public class DefaultColorSchemesManager implements PersistentStateComponent<Element> {
   private final List<DefaultColorsScheme> mySchemes;
   @NonNls private static final String SCHEME_ELEMENT = "scheme";
 
-  @Override
-  @NotNull
-  public String getComponentName() {
-    return "DefaultColorSchemesManager";
-  }
-
   public DefaultColorSchemesManager() {
     mySchemes = new ArrayList<DefaultColorsScheme>();
   }
@@ -51,20 +42,24 @@ public class DefaultColorSchemesManager implements JDOMExternalizable, NamedComp
     return ServiceManager.getService(DefaultColorSchemesManager.class);
   }
 
+  @Nullable
   @Override
-  public void readExternal(Element element) throws InvalidDataException {
-    List schemes = element.getChildren(SCHEME_ELEMENT);
-    for (Object scheme : schemes) {
-      Element schemeElement = (Element)scheme;
-      DefaultColorsScheme newScheme = new DefaultColorsScheme(this);
-      newScheme.readExternal(schemeElement);
-      mySchemes.add(newScheme);
-    }
+  public Element getState() {
+    return null;
   }
 
   @Override
-  public void writeExternal(Element element) throws WriteExternalException {
-    throw new WriteExternalException();
+  public void loadState(Element state) {
+    for (Element schemeElement : state.getChildren(SCHEME_ELEMENT)) {
+      DefaultColorsScheme newScheme = new DefaultColorsScheme(this);
+      try {
+        newScheme.readExternal(schemeElement);
+      }
+      catch (InvalidDataException e) {
+        throw new RuntimeException(e);
+      }
+      mySchemes.add(newScheme);
+    }
   }
 
   public DefaultColorsScheme[] getAllSchemes() {

platform/external-system-impl/src/com/intellij/openapi/externalSystem/service/RemoteExternalSystemCommunicationManager.java

@@ -30,6 +30,7 @@ import com.intellij.execution.process.ProcessHandler;
 import com.intellij.execution.process.ProcessTerminatedListener;
 import com.intellij.execution.rmi.RemoteProcessSupport;
 import com.intellij.execution.runners.ProgramRunner;
+import com.intellij.openapi.Disposable;
 import com.intellij.openapi.actionSystem.AnAction;
 import com.intellij.openapi.application.PathManager;
 import com.intellij.openapi.components.impl.stores.StorageUtil;
@@ -72,7 +73,7 @@ import java.util.concurrent.atomic.AtomicReference;
  * @author Denis Zhdanov
  * @since 8/9/13 3:37 PM
  */
-public class RemoteExternalSystemCommunicationManager implements ExternalSystemCommunicationManager {
+public class RemoteExternalSystemCommunicationManager implements ExternalSystemCommunicationManager, Disposable {
 
   private static final Logger LOG = Logger.getInstance("#" + RemoteExternalSystemCommunicationManager.class.getName());
 
@@ -265,4 +266,9 @@ public class RemoteExternalSystemCommunicationManager implements ExternalSystemC
   public void clear() {
     mySupport.stopAll(true); 
   }
+
+  @Override
+  public void dispose() {
+    shutdown(false);
+  }
 }

platform/external-system-impl/src/com/intellij/openapi/externalSystem/service/project/manage/ProjectDataManager.java

@@ -86,6 +86,8 @@ public class ProjectDataManager {
 
   @SuppressWarnings("unchecked")
   public <T> void importData(@NotNull Collection<DataNode<?>> nodes, @NotNull Project project, boolean synchronous) {
+    if(project.isDisposed()) return;
+
     Map<Key<?>, List<DataNode<?>>> grouped = ExternalSystemApiUtil.group(nodes);
     for (Map.Entry<Key<?>, List<DataNode<?>>> entry : grouped.entrySet()) {
       // Simple class cast makes ide happy but compiler fails.
@@ -99,6 +101,8 @@ public class ProjectDataManager {
 
   @SuppressWarnings("unchecked")
   public <T> void importData(@NotNull Key<T> key, @NotNull Collection<DataNode<T>> nodes, @NotNull Project project, boolean synchronous) {
+    if(project.isDisposed()) return;
+
     ensureTheDataIsReadyToUse(nodes);
     List<ProjectDataService<?, ?>> services = myServices.getValue().get(key);
     if (services == null) {
@@ -148,11 +152,13 @@ public class ProjectDataManager {
   }
 
   public void updateExternalProjectData(@NotNull Project project, @NotNull ExternalProjectInfo externalProjectInfo) {
-    ExternalProjectsDataStorage.getInstance(project).add(externalProjectInfo);
+    if(!project.isDisposed()) {
+      ExternalProjectsDataStorage.getInstance(project).add(externalProjectInfo);
+    }
   }
 
   @Nullable
   public ExternalProjectInfo getExternalProjectData(@NotNull Project project, @NotNull ProjectSystemId projectSystemId, @NotNull String externalProjectPath) {
-    return ExternalProjectsDataStorage.getInstance(project).get(projectSystemId, externalProjectPath);
+    return !project.isDisposed() ? ExternalProjectsDataStorage.getInstance(project).get(projectSystemId, externalProjectPath) : null;
   }
 }

platform/lang-api/src/com/intellij/codeInsight/completion/CompletionInitializationContext.java

@@ -39,14 +39,17 @@ public class CompletionInitializationContext {
   public static @NonNls final String DUMMY_IDENTIFIER = CompletionUtilCore.DUMMY_IDENTIFIER;
   public static @NonNls final String DUMMY_IDENTIFIER_TRIMMED = CompletionUtilCore.DUMMY_IDENTIFIER_TRIMMED;
   private final Editor myEditor;
+  @NotNull
+  private final Caret myCaret;
   private final PsiFile myFile;
   private final CompletionType myCompletionType;
   private final int myInvocationCount;
   private final OffsetMap myOffsetMap;
   private String myDummyIdentifier = DUMMY_IDENTIFIER;
 
-  public CompletionInitializationContext(final Editor editor, final Caret caret, final PsiFile file, final CompletionType completionType, int invocationCount) {
+  public CompletionInitializationContext(final Editor editor, final @NotNull Caret caret, final PsiFile file, final CompletionType completionType, int invocationCount) {
     myEditor = editor;
+    myCaret = caret;
     myFile = file;
     myCompletionType = completionType;
     myInvocationCount = invocationCount;
@@ -92,6 +95,11 @@ public class CompletionInitializationContext {
     return myEditor;
   }
 
+  @NotNull
+  public Caret getCaret() {
+    return myCaret;
+  }
+
   @NotNull
   public CompletionType getCompletionType() {
     return myCompletionType;

platform/lang-impl/src/com/intellij/codeInsight/completion/CodeCompletionHandlerBase.java

@@ -193,7 +193,7 @@ public class CodeCompletionHandlerBase {
     insertDummyIdentifier(initializationContext[0], hasModifiers, invocationCount);
   }
 
-  private CompletionInitializationContext runContributorsBeforeCompletion(Editor editor, PsiFile psiFile, int invocationCount, Caret caret) {
+  private CompletionInitializationContext runContributorsBeforeCompletion(Editor editor, PsiFile psiFile, int invocationCount, @NotNull Caret caret) {
     final Ref<CompletionContributor> current = Ref.create(null);
     CompletionInitializationContext context = new CompletionInitializationContext(editor, caret, psiFile, myCompletionType, invocationCount) {
       CompletionContributor dummyIdentifierChanger;
@@ -296,7 +296,8 @@ public class CodeCompletionHandlerBase {
 
     final Semaphore freezeSemaphore = new Semaphore();
     freezeSemaphore.down();
-    final CompletionProgressIndicator indicator = new CompletionProgressIndicator(editor, parameters, this, freezeSemaphore,
+    final CompletionProgressIndicator indicator = new CompletionProgressIndicator(editor, initContext.getCaret(),
+                                                                                  parameters, this, freezeSemaphore,
                                                                                   initContext.getOffsetMap(), hasModifiers, lookup);
     Disposer.register(indicator, hostMap);
     Disposer.register(indicator, context.getOffsetMap());
@@ -602,7 +603,7 @@ public class CodeCompletionHandlerBase {
                                                                         final CompletionLookupArranger.StatisticsUpdate update) {
     final Editor editor = indicator.getEditor();
 
-    final int caretOffset = editor.getCaretModel().getOffset();
+    final int caretOffset = indicator.getCaret().getOffset();
     int idEndOffset = indicator.getIdentifierEndOffset();
     if (idEndOffset < 0) {
       idEndOffset = CompletionInitializationContext.calcDefaultIdentifierEnd(editor, caretOffset);

platform/lang-impl/src/com/intellij/codeInsight/completion/CompletionProgressIndicator.java

@@ -39,6 +39,7 @@ import com.intellij.openapi.application.WriteAction;
 import com.intellij.openapi.command.CommandProcessor;
 import com.intellij.openapi.command.WriteCommandAction;
 import com.intellij.openapi.diagnostic.Logger;
+import com.intellij.openapi.editor.Caret;
 import com.intellij.openapi.editor.Editor;
 import com.intellij.openapi.progress.ProcessCanceledException;
 import com.intellij.openapi.progress.ProgressManager;
@@ -88,6 +89,8 @@ import java.util.concurrent.ConcurrentLinkedQueue;
 public class CompletionProgressIndicator extends ProgressIndicatorBase implements CompletionProcess, Disposable {
   private static final Logger LOG = Logger.getInstance("#com.intellij.codeInsight.completion.CompletionProgressIndicator");
   private final Editor myEditor;
+  @NotNull
+  private final Caret myCaret;
   private final CompletionParameters myParameters;
   private final CodeCompletionHandlerBase myHandler;
   private final LookupImpl myLookup;
@@ -132,6 +135,7 @@ public class CompletionProgressIndicator extends ProgressIndicatorBase implement
   private final int myStartCaret;
 
   public CompletionProgressIndicator(final Editor editor,
+                                     @NotNull Caret caret,
                                      CompletionParameters parameters,
                                      CodeCompletionHandlerBase handler,
                                      Semaphore freezeSemaphore,
@@ -139,6 +143,7 @@ public class CompletionProgressIndicator extends ProgressIndicatorBase implement
                                      boolean hasModifiers,
                                      LookupImpl lookup) {
     myEditor = editor;
+    myCaret = caret;
     myParameters = parameters;
     myHandler = handler;
     myFreezeSemaphore = freezeSemaphore;
@@ -575,6 +580,11 @@ public class CompletionProgressIndicator extends ProgressIndicatorBase implement
     return myEditor;
   }
 
+  @NotNull
+  public Caret getCaret() {
+    return myCaret;
+  }
+
   public boolean isRepeatedInvocation(CompletionType completionType, Editor editor) {
     if (completionType != myParameters.getCompletionType() || editor != myEditor) {
       return false;

platform/platform-impl/src/com/intellij/ide/IdeEventQueue.java

@@ -56,8 +56,10 @@ import java.beans.PropertyChangeEvent;
 import java.beans.PropertyChangeListener;
 import java.lang.reflect.Field;
 import java.lang.reflect.Method;
-import java.util.*;
+import java.util.LinkedHashSet;
 import java.util.List;
+import java.util.Map;
+import java.util.Set;
 
 /**
  * @author Vladimir Kondratyev
@@ -131,7 +133,7 @@ public class IdeEventQueue extends EventQueue {
 
   private final Set<EventDispatcher> myDispatchers = new LinkedHashSet<EventDispatcher>();
   private final Set<EventDispatcher> myPostProcessors = new LinkedHashSet<EventDispatcher>();
-  private final Set<Runnable> myReady = new HashSet<Runnable>();
+  private final Set<Runnable> myReady = ContainerUtil.newHashSet();
 
   private boolean myKeyboardBusy;
   private boolean myDispatchingFocusEvent;
@@ -329,7 +331,7 @@ public class IdeEventQueue extends EventQueue {
   }
 
   private static class InertialMouseRouter {
-    private static int MOUSE_WHEEL_RESTART_THRESHOLD = 50;
+    private static final int MOUSE_WHEEL_RESTART_THRESHOLD = 50;
     private static Component wheelDestinationComponent = null;
     private static long lastMouseWheel = 0;
 
@@ -556,7 +558,7 @@ public class IdeEventQueue extends EventQueue {
     }
     else if (e instanceof MouseEvent) {
       MouseEvent me = (MouseEvent)e;
-      if (myMouseEventDispatcher.patchClickCount(me) && me.getID() == MouseEvent.MOUSE_CLICKED) {
+      if (IdeMouseEventDispatcher.patchClickCount(me) && me.getID() == MouseEvent.MOUSE_CLICKED) {
         final MouseEvent toDispatch =
           new MouseEvent(me.getComponent(), me.getID(), System.currentTimeMillis(), me.getModifiers(), me.getX(), me.getY(), 1,
                          me.isPopupTrigger(), me.getButton());
@@ -590,9 +592,8 @@ public class IdeEventQueue extends EventQueue {
   }
 
   public boolean wasRootRecentlyClicked(Component component) {
-    if (component == null || lastClickEvent == null || lastClickEvent.getComponent() == null)
-      return false;
-    return SwingUtilities.getRoot(lastClickEvent.getComponent()) == SwingUtilities.getRoot(component);
+    return component != null && lastClickEvent != null && lastClickEvent.getComponent() != null &&
+           SwingUtilities.getRoot(lastClickEvent.getComponent()) == SwingUtilities.getRoot(component);
   }
 
   private static void fixStickyWindow(KeyboardFocusManager mgr, Window wnd, String resetMethod) {

platform/platform-impl/src/com/intellij/openapi/components/impl/stores/DefaultProjectStoreImpl.java

@@ -71,8 +71,8 @@ public class DefaultProjectStoreImpl extends ProjectStoreImpl {
       }
 
       @Override
-      protected MySaveSession createSaveSession(@NotNull StorageData storageData) {
-        return new MySaveSession(storageData) {
+      protected XmlElementStorageSaveSession createSaveSession(@NotNull StorageData storageData) {
+        return new XmlElementStorageSaveSession(storageData) {
           @Override
           protected void doSave(@Nullable Element element) {
             // we must set empty element instead of null as indicator - ProjectManager state is ready to save

platform/platform-impl/src/com/intellij/openapi/components/impl/stores/FileBasedStorage.java

@@ -21,7 +21,6 @@ import com.intellij.notification.Notifications;
 import com.intellij.openapi.Disposable;
 import com.intellij.openapi.application.ApplicationManager;
 import com.intellij.openapi.components.*;
-import com.intellij.openapi.diagnostic.Logger;
 import com.intellij.openapi.util.JDOMUtil;
 import com.intellij.openapi.util.io.BufferExposingByteArrayOutputStream;
 import com.intellij.openapi.util.io.FileUtil;
@@ -43,8 +42,6 @@ import java.util.Collections;
 import java.util.Set;
 
 public class FileBasedStorage extends XmlElementStorage {
-  private static final Logger LOG = Logger.getInstance(FileBasedStorage.class);
-
   private final String myFilePath;
   private final File myFile;
   private volatile VirtualFile myCachedVirtualFile;
@@ -104,11 +101,11 @@ public class FileBasedStorage extends XmlElementStorage {
   }
 
   @Override
-  protected MySaveSession createSaveSession(@NotNull StorageData storageData) {
+  protected XmlElementStorageSaveSession createSaveSession(@NotNull StorageData storageData) {
     return new FileSaveSession(storageData);
   }
 
-  private class FileSaveSession extends MySaveSession {
+  private class FileSaveSession extends XmlElementStorageSaveSession {
     protected FileSaveSession(@NotNull StorageData storageData) {
       super(storageData);
     }
@@ -134,6 +131,10 @@ public class FileBasedStorage extends XmlElementStorage {
         LOG.error(e);
       }
 
+      if (LOG.isDebugEnabled() && myFileSpec.equals(StoragePathMacros.MODULE_FILE)) {
+        LOG.debug("doSave " + getFilePath());
+      }
+
       if (content == null) {
         StorageUtil.deleteFile(myFile, this, getVirtualFile());
         myCachedVirtualFile = null;
@@ -306,4 +307,9 @@ public class FileBasedStorage extends XmlElementStorage {
     FileUtil.writeToFile(file, out.getInternalBuffer(), 0, out.size());
     return file;
   }
+
+  @Override
+  public String toString() {
+    return getFilePath();
+  }
 }

platform/platform-impl/src/com/intellij/openapi/components/impl/stores/StateStorageManagerImpl.java

@@ -15,7 +15,6 @@
  */
 package com.intellij.openapi.components.impl.stores;
 
-import com.intellij.codeInspection.SmartHashMap;
 import com.intellij.openapi.Disposable;
 import com.intellij.openapi.application.Application;
 import com.intellij.openapi.application.ApplicationManager;
@@ -414,9 +413,13 @@ public abstract class StateStorageManagerImpl implements StateStorageManager, Di
   @Override
   public SaveSession startSave(@NotNull ExternalizationSession externalizationSession) {
     StateStorageManagerExternalizationSession myExternalizationSession = (StateStorageManagerExternalizationSession)externalizationSession;
+    if (myExternalizationSession.mySessions.isEmpty()) {
+      return null;
+    }
+
     List<SaveSession> saveSessions = null;
-    for (StateStorage stateStorage : myExternalizationSession.mySessions.keySet()) {
-      SaveSession saveSession = stateStorage.startSave(myExternalizationSession.mySessions.get(stateStorage));
+    for (Map.Entry<StateStorage, StateStorage.ExternalizationSession> entry : myExternalizationSession.mySessions.entrySet()) {
+      SaveSession saveSession = entry.getKey().startSave(entry.getValue());
       if (saveSession != null) {
         if (saveSessions == null) {
           saveSessions = new SmartList<SaveSession>();
@@ -448,7 +451,7 @@ public abstract class StateStorageManagerImpl implements StateStorageManager, Di
   }
 
   private final class StateStorageManagerExternalizationSession implements ExternalizationSession {
-    final Map<StateStorage, StateStorage.ExternalizationSession> mySessions = new SmartHashMap<StateStorage, StateStorage.ExternalizationSession>();
+    final Map<StateStorage, StateStorage.ExternalizationSession> mySessions = new LinkedHashMap<StateStorage, StateStorage.ExternalizationSession>();
 
     @Override
     public void setState(@NotNull Storage[] storageSpecs, @NotNull Object component, @NotNull String componentName, @NotNull Object state) {

platform/platform-impl/src/com/intellij/openapi/components/impl/stores/XmlElementStorage.java

@@ -19,12 +19,10 @@ import com.intellij.openapi.Disposable;
 import com.intellij.openapi.components.*;
 import com.intellij.openapi.diagnostic.Logger;
 import com.intellij.openapi.options.CurrentUserHolder;
-import com.intellij.openapi.util.Disposer;
-import com.intellij.openapi.util.JDOMUtil;
-import com.intellij.openapi.util.Pair;
-import com.intellij.openapi.util.WriteExternalException;
+import com.intellij.openapi.util.*;
 import com.intellij.openapi.util.io.BufferExposingByteArrayOutputStream;
 import com.intellij.openapi.vfs.VirtualFile;
+import com.intellij.util.containers.ContainerUtil;
 import gnu.trove.THashMap;
 import gnu.trove.TObjectLongHashMap;
 import org.jdom.Document;
@@ -40,7 +38,7 @@ import java.io.InputStream;
 import java.util.*;
 
 public abstract class XmlElementStorage implements StateStorage, Disposable {
-  private static final Logger LOG = Logger.getInstance(XmlElementStorage.class);
+  protected static final Logger LOG = Logger.getInstance(XmlElementStorage.class);
 
   private final static RoamingElementFilter DISABLED_ROAMING_ELEMENT_FILTER = new RoamingElementFilter(RoamingType.DISABLED);
 
@@ -174,6 +172,9 @@ public abstract class XmlElementStorage implements StateStorage, Disposable {
   @Override
   @Nullable
   public final ExternalizationSession startExternalization() {
+    if (LOG.isDebugEnabled() && myFileSpec.equals(StoragePathMacros.MODULE_FILE)) {
+      LOG.debug("startExternalization: mySavingDisabled " + mySavingDisabled + " for " + toString());
+    }
     return mySavingDisabled ? null : createSaveSession(getStorageData());
   }
 
@@ -181,21 +182,33 @@ public abstract class XmlElementStorage implements StateStorage, Disposable {
   @Override
   public SaveSession startSave(@NotNull ExternalizationSession externalizationSession) {
     if (mySavingDisabled) {
+      if (LOG.isDebugEnabled() && myFileSpec.equals(StoragePathMacros.MODULE_FILE)) {
+        LOG.debug("startSave: saving disabled for " + toString());
+      }
       return null;
     }
     else {
-      MySaveSession session = (MySaveSession)externalizationSession;
+      XmlElementStorageSaveSession session = (XmlElementStorageSaveSession)externalizationSession;
+      if (LOG.isDebugEnabled() && myFileSpec.equals(StoragePathMacros.MODULE_FILE)) {
+        LOG.debug("startSave: session " + session.myCopiedStorageData + " for " + toString());
+      }
       return session.myCopiedStorageData == null ? null : session;
     }
   }
 
-  protected abstract MySaveSession createSaveSession(@NotNull StorageData storageData);
+  protected abstract XmlElementStorageSaveSession createSaveSession(@NotNull StorageData storageData);
 
   public void disableSaving() {
+    if (LOG.isDebugEnabled()) {
+      LOG.debug("Saving disabled for " + toString());
+    }
     mySavingDisabled = true;
   }
 
   public void enableSaving() {
+    if (LOG.isDebugEnabled()) {
+      LOG.debug("Saving enabled for " + toString());
+    }
     mySavingDisabled = false;
   }
 
@@ -223,23 +236,29 @@ public abstract class XmlElementStorage implements StateStorage, Disposable {
     StorageData oldData = myLoadedData;
     StorageData newData = getStorageData(true);
     if (oldData == null) {
+      if (LOG.isDebugEnabled()) {
+        LOG.debug("analyzeExternalChangesAndUpdateIfNeed: old data null, load new for " + toString());
+      }
       result.addAll(newData.getComponentNames());
     }
     else {
       Set<String> changedComponentNames = oldData.getChangedComponentNames(newData, myPathMacroSubstitutor);
-      if (changedComponentNames != null) {
+      if (LOG.isDebugEnabled()) {
+        LOG.debug("analyzeExternalChangesAndUpdateIfNeed: changedComponentNames + " + changedComponentNames + " for " + toString());
+      }
+      if (!ContainerUtil.isEmpty(changedComponentNames)) {
         result.addAll(changedComponentNames);
       }
     }
   }
 
-  protected abstract class MySaveSession implements SaveSession, ExternalizationSession {
+  protected abstract class XmlElementStorageSaveSession implements SaveSession, ExternalizationSession {
     private final StorageData myOriginalStorageData;
     private StorageData myCopiedStorageData;
 
     private final Map<String, Element> myNewLiveStates = new THashMap<String, Element>();
 
-    public MySaveSession(@NotNull StorageData storageData) {
+    public XmlElementStorageSaveSession(@NotNull StorageData storageData) {
       myOriginalStorageData = storageData;
     }
 
@@ -247,6 +266,10 @@ public abstract class XmlElementStorage implements StateStorage, Disposable {
     public final void setState(@NotNull Object component, @NotNull String componentName, @NotNull Object state, @Nullable Storage storageSpec) {
       Element element;
       try {
+        //noinspection deprecation
+        if (LOG.isDebugEnabled() && state instanceof JDOMExternalizable && componentName.endsWith("ApplicationInfo")) {
+          return;
+        }
         element = DefaultStateSerializer.serializeState(state, storageSpec);
       }
       catch (WriteExternalException e) {
@@ -277,6 +300,7 @@ public abstract class XmlElementStorage implements StateStorage, Disposable {
 
       try {
         doSave(getElement(myCopiedStorageData, isCollapsePathsOnSave(), myNewLiveStates));
+        myLoadedData = myCopiedStorageData;
       }
       catch (IOException e) {
         throw new StateStorageException(e);

platform/platform-impl/src/com/intellij/openapi/wm/impl/WindowManagerImpl.java

@@ -116,7 +116,6 @@ public final class WindowManagerImpl extends WindowManagerEx implements NamedCom
   private Rectangle myFrameBounds;
   private int myFrameExtendedState;
   private final WindowAdapter myActivationListener;
-  private final ApplicationInfoEx myApplicationInfoEx;
   private final DataManager myDataManager;
   private final ActionManagerEx myActionManager;
   private final UISettings myUiSettings;
@@ -125,11 +124,9 @@ public final class WindowManagerImpl extends WindowManagerEx implements NamedCom
    * invoked by reflection
    */
   public WindowManagerImpl(DataManager dataManager,
-                           ApplicationInfoEx applicationInfoEx,
                            ActionManagerEx actionManager,
                            UISettings uiSettings,
                            MessageBus bus) {
-    myApplicationInfoEx = applicationInfoEx;
     myDataManager = dataManager;
     myActionManager = actionManager;
     myUiSettings = uiSettings;
@@ -524,7 +521,7 @@ public final class WindowManagerImpl extends WindowManagerEx implements NamedCom
   }
 
   public void showFrame() {
-    final IdeFrameImpl frame = new IdeFrameImpl(myApplicationInfoEx,
+    final IdeFrameImpl frame = new IdeFrameImpl(ApplicationInfoEx.getInstanceEx(),
                                                 myActionManager, myUiSettings, myDataManager,
                                                 ApplicationManager.getApplication());
     myProject2Frame.put(null, frame);
@@ -595,7 +592,7 @@ public final class WindowManagerImpl extends WindowManagerEx implements NamedCom
       frame.setProject(project);
     }
     else {
-      frame = new IdeFrameImpl(myApplicationInfoEx, myActionManager, myUiSettings,
+      frame = new IdeFrameImpl(ApplicationInfoEx.getInstanceEx(), myActionManager, myUiSettings,
                                myDataManager, ApplicationManager.getApplication());
 
       final Rectangle bounds = ProjectFrameBounds.getInstance(project).getBounds();

platform/platform-resources/src/META-INF/PlatformExtensions.xml

@@ -55,10 +55,10 @@
     <applicationService serviceInterface="com.intellij.ide.ui.search.SearchableOptionsRegistrar"
                         serviceImplementation="com.intellij.ide.ui.search.SearchableOptionsRegistrarImpl"/>
     <applicationService serviceInterface="com.intellij.openapi.fileEditor.impl.EditorEmptyTextPainter"
-                        serviceImplementation="com.intellij.openapi.fileEditor.impl.EditorEmptyTextPainter" />
+                        serviceImplementation="com.intellij.openapi.fileEditor.impl.EditorEmptyTextPainter"/>
 
     <applicationService serviceInterface="com.intellij.openapi.editor.EditorCopyPasteHelper"
-                        serviceImplementation="com.intellij.openapi.editor.impl.EditorCopyPasteHelperImpl" />
+                        serviceImplementation="com.intellij.openapi.editor.impl.EditorCopyPasteHelperImpl"/>
 
     <applicationService serviceImplementation="com.intellij.openapi.options.ex.IdeConfigurablesGroup"/>
 
@@ -139,8 +139,7 @@
     <applicationService serviceInterface="com.intellij.openapi.options.SchemesManagerFactory"
                         serviceImplementation="com.intellij.openapi.options.SchemesManagerFactoryImpl"/>
 
-    <applicationService serviceInterface="com.intellij.openapi.editor.colors.ex.DefaultColorSchemesManager"
-                        serviceImplementation="com.intellij.openapi.editor.colors.ex.DefaultColorSchemesManager"/>
+    <applicationService serviceImplementation="com.intellij.openapi.editor.colors.ex.DefaultColorSchemesManager"/>
     <applicationService serviceInterface="com.intellij.openapi.editor.colors.TextAttributesKey$TextAttributeKeyDefaultsProvider"
                         serviceImplementation="com.intellij.openapi.editor.colors.impl.TextAttributeKeyDefaultsProviderImpl"/>
     <applicationService serviceInterface="com.intellij.openapi.editor.colors.EditorColorsManager"
@@ -157,6 +156,8 @@
                         serviceImplementation="com.intellij.application.options.PathMacrosImpl"/>
 
     <applicationService serviceImplementation="com.intellij.openapi.util.DimensionService"/>
+    <applicationService serviceInterface="com.intellij.openapi.application.ApplicationInfo"
+                        serviceImplementation="com.intellij.openapi.application.impl.ApplicationInfoImpl"/>
 
     <projectService serviceInterface="com.intellij.openapi.vfs.ReadonlyStatusHandler"
                     serviceImplementation="com.intellij.openapi.vcs.readOnlyHandler.ReadonlyStatusHandlerImpl"/>
@@ -208,7 +209,8 @@
                     serviceImplementation="com.intellij.openapi.project.impl.ProjectReloadStateImpl"/>
 
     <!-- General -->
-    <applicationConfigurable groupId="appearance" groupWeight="120" key="title.general" bundle="messages.IdeBundle" id="preferences.general" instance="com.intellij.ide.GeneralSettingsConfigurable"/>
+    <applicationConfigurable groupId="appearance" groupWeight="120" key="title.general" bundle="messages.IdeBundle" id="preferences.general"
+                             instance="com.intellij.ide.GeneralSettingsConfigurable"/>
 
     <!-- Appearance -->
     <applicationConfigurable groupId="appearance" groupWeight="150" instance="com.intellij.ide.ui.AppearanceConfigurable" id="preferences.lookFeel" key="title.appearance"
@@ -233,7 +235,7 @@
     <actionFromOptionDescriptorProvider implementation="com.intellij.ide.plugins.InstalledPluginsManagerMain$PluginsActionFromOptionDescriptorProvider"/>
     <applicationConfigurable parentId="preferences.general" instance="com.intellij.util.net.HttpProxyConfigurable" id="http.proxy" displayName="HTTP Proxy"/>
     <applicationConfigurable groupId="tools" displayName="Server Certificates" instance="com.intellij.util.net.ssl.CertificateConfigurable"/>
-    <applicationConfigurable groupId="tools" instance="com.intellij.openapi.diff.impl.external.DiffOptionsForm" id="diff" displayName="External Diff Tools" />
+    <applicationConfigurable groupId="tools" instance="com.intellij.openapi.diff.impl.external.DiffOptionsForm" id="diff" displayName="External Diff Tools"/>
     <!--<applicationConfigurable instance="com.intellij.ui.switcher.QuickAccessConfigurable"/>-->
 
     <fileTypeFactory implementation="com.intellij.openapi.fileTypes.impl.PlatformFileTypeFactory"/>
@@ -270,8 +272,8 @@
     <bundledKeymapProvider implementation="com.intellij.openapi.keymap.impl.DefaultBundledKeymaps"/>
     <!-- <checkinHandlerFactory implementation="com.intellij.openapi.vcs.CheckRemoteStatusCheckinHandlerFactory"/> -->
 
-    <statistics.usagesCollector  implementation="com.intellij.ide.plugins.DisabledPluginsUsagesCollector"/>
-    <statistics.usagesCollector  implementation="com.intellij.ide.plugins.NonBundledPluginsUsagesCollector"/>
+    <statistics.usagesCollector implementation="com.intellij.ide.plugins.DisabledPluginsUsagesCollector"/>
+    <statistics.usagesCollector implementation="com.intellij.ide.plugins.NonBundledPluginsUsagesCollector"/>
     <statistics.usagesCollector implementation="com.intellij.featureStatistics.FeaturesUsageCollector"/>
     <statistics.usagesCollector implementation="com.intellij.openapi.vcs.statistics.VcsUsagesCollector"/>
     <statistics.usagesCollector implementation="com.intellij.internal.statistic.UsageTrigger$MyCollector"/>

platform/platform-resources/src/componentSets/Platform.xml

@@ -1,10 +1,5 @@
 <components>
   <application-components>
-    <component>
-      <interface-class>com.intellij.openapi.application.ApplicationInfo</interface-class>
-      <implementation-class>com.intellij.openapi.application.impl.ApplicationInfoImpl</implementation-class>
-    </component>
-
     <component>
       <interface-class>com.intellij.openapi.project.ProjectManager</interface-class>
       <implementation-class>com.intellij.openapi.project.impl.ProjectManagerImpl</implementation-class>

platform/platform-resources/src/idea/Keymap_Default.xml

@@ -921,12 +921,8 @@
     <keyboard-shortcut first-keystroke="control shift PERIOD"/>
   </action>
 
-  <action id="StructuralSearchPlugin.StructuralSearchAction">
-    <keyboard-shortcut first-keystroke="control shift S"/>
-  </action>
-  <action id="StructuralSearchPlugin.StructuralReplaceAction">
-    <keyboard-shortcut first-keystroke="control shift M"/>
-  </action>
+  <action id="StructuralSearchPlugin.StructuralSearchAction"/>
+  <action id="StructuralSearchPlugin.StructuralReplaceAction"/>
   <action id="DuplicatesForm.SendToLeft">
     <keyboard-shortcut first-keystroke="control 1"/>
   </action>

platform/platform-tests/testSrc/com/intellij/openapi/components/impl/XmlElementStorageTest.java

@@ -97,8 +97,8 @@ public class XmlElementStorageTest extends LightPlatformLangTestCase {
     }
 
     @Override
-    protected MySaveSession createSaveSession(@NotNull StorageData storageData) {
-      return new MySaveSession(storageData) {
+    protected XmlElementStorageSaveSession createSaveSession(@NotNull StorageData storageData) {
+      return new XmlElementStorageSaveSession(storageData) {
         @Override
         protected void doSave(@Nullable Element element) {
           mySavedElement = element == null ? null : element.clone();

platform/util/src/com/intellij/icons/AllIcons.java

@@ -722,6 +722,7 @@ public class AllIcons {
     public static final Icon DeleteContentRoot = IconLoader.getIcon("/modules/deleteContentRoot.png"); // 9x9
     public static final Icon DeleteContentRootRollover = IconLoader.getIcon("/modules/deleteContentRootRollover.png"); // 9x9
     public static final Icon Edit = IconLoader.getIcon("/modules/edit.png"); // 14x14
+    public static final Icon ExcludedGeneratedRoot = IconLoader.getIcon("/modules/excludedGeneratedRoot.png"); // 16x16
     public static final Icon ExcludeRoot = IconLoader.getIcon("/modules/excludeRoot.png"); // 16x16
     public static final Icon GeneratedFolder = IconLoader.getIcon("/modules/generatedFolder.png"); // 16x16
     public static final Icon GeneratedSourceRoot = IconLoader.getIcon("/modules/generatedSourceRoot.png"); // 16x16

platform/vcs-impl/src/com/intellij/openapi/vcs/ex/RollbackLineStatusAction.java

@@ -44,6 +44,11 @@ public class RollbackLineStatusAction extends DumbAwareAction {
       e.getPresentation().setEnabledAndVisible(false);
       return;
     }
+    if (!isSomeChangeSelected(editor, tracker)) {
+      e.getPresentation().setVisible(true);
+      e.getPresentation().setEnabled(false);
+      return;
+    }
     e.getPresentation().setEnabledAndVisible(true);
   }
 
@@ -57,6 +62,14 @@ public class RollbackLineStatusAction extends DumbAwareAction {
     rollback(tracker, editor, null);
   }
 
+  protected static boolean isSomeChangeSelected(@NotNull Editor editor, @NotNull LineStatusTracker tracker) {
+    List<Caret> carets = editor.getCaretModel().getAllCarets();
+    if (carets.size() != 1) return true;
+    Caret caret = carets.get(0);
+    if (caret.hasSelection()) return true;
+    return tracker.getRangeForLine(caret.getLogicalPosition().line) != null;
+  }
+
   protected static void rollback(@NotNull LineStatusTracker tracker, @Nullable Editor editor, @Nullable Range range) {
     assert editor != null || range != null;
 

platform/vcs-impl/src/com/intellij/openapi/vcs/impl/VcsManagerPerModuleConfiguration.java

@@ -32,6 +32,10 @@ import org.jdom.Element;
 import org.jetbrains.annotations.NotNull;
 import org.jetbrains.annotations.Nullable;
 
+/**
+ * @deprecated to remove in IDEA 15
+ */
+@Deprecated
 @State(
   name = "VcsManagerConfiguration",
   storages = @Storage(file = StoragePathMacros.MODULE_FILE)

platform/vcs-impl/testSrc/com/intellij/openapi/vcs/Executor.java

@@ -119,6 +119,10 @@ public class Executor {
     }
   }
 
+  public static void overwrite(@NotNull String fileName, @NotNull String content) throws IOException {
+    overwrite(child(fileName), content);
+  }
+
   public static void overwrite(@NotNull File file, @NotNull String content) throws IOException {
     FileUtil.writeToFile(file, content.getBytes(), false);
   }

plugins/InspectionGadgets/InspectionGadgetsAnalysis/src/com/siyeh/ig/bugs/NewStringBufferWithCharArgumentInspection.java

@@ -92,7 +92,7 @@ public class NewStringBufferWithCharArgumentInspection extends BaseInspection {
       }
       final PsiExpression argument = arguments[0];
       final String text = argument.getText();
-      final String newArgument = '"' + StringUtil.escapeStringCharacters(text.substring(1, text.length() - 1)) + '"';
+      final String newArgument = '"' + StringUtil.escapeStringCharacters(StringUtil.stripQuotesAroundValue(text)) + '"';
       PsiReplacementUtil.replaceExpression(argument, newArgument);
     }
   }

plugins/git4idea/src/git4idea/cherrypick/GitCherryPicker.java

@@ -21,6 +21,8 @@ import com.intellij.notification.NotificationListener;
 import com.intellij.openapi.application.ModalityState;
 import com.intellij.openapi.diagnostic.Logger;
 import com.intellij.openapi.project.Project;
+import com.intellij.openapi.util.Condition;
+import com.intellij.openapi.util.text.StringUtil;
 import com.intellij.openapi.vcs.FilePath;
 import com.intellij.openapi.vcs.VcsNotifier;
 import com.intellij.openapi.vcs.changes.*;
@@ -42,12 +44,18 @@ import git4idea.merge.GitConflictResolver;
 import git4idea.repo.GitRepository;
 import git4idea.util.UntrackedFilesNotifier;
 import org.jetbrains.annotations.NotNull;
+import org.jetbrains.annotations.Nullable;
 
 import javax.swing.event.HyperlinkEvent;
 import java.io.File;
 import java.io.IOException;
-import java.util.*;
+import java.util.Collection;
+import java.util.Collections;
+import java.util.List;
+import java.util.Map;
+import java.util.concurrent.CountDownLatch;
 import java.util.concurrent.Semaphore;
+import java.util.concurrent.TimeUnit;
 import java.util.concurrent.atomic.AtomicBoolean;
 import java.util.concurrent.atomic.AtomicReference;
 
@@ -80,18 +88,19 @@ public class GitCherryPicker {
   }
 
   public void cherryPick(@NotNull Map<GitRepository, List<VcsFullCommitDetails>> commitsInRoots) {
-    List<GitCommitWrapper> successfulCommits = new ArrayList<GitCommitWrapper>();
+    List<GitCommitWrapper> successfulCommits = ContainerUtil.newArrayList();
+    List<GitCommitWrapper> alreadyPicked = ContainerUtil.newArrayList();
     DvcsUtil.workingTreeChangeStarted(myProject);
     try {
       for (Map.Entry<GitRepository, List<VcsFullCommitDetails>> entry : commitsInRoots.entrySet()) {
         GitRepository repository = entry.getKey();
-        boolean result = cherryPick(repository, entry.getValue(), successfulCommits);
+        boolean result = cherryPick(repository, entry.getValue(), successfulCommits, alreadyPicked);
         repository.update();
         if (!result) {
           return;
         }
       }
-      notifySuccess(successfulCommits);
+      notifyResult(successfulCommits, alreadyPicked);
     }
     finally {
       DvcsUtil.workingTreeChangeFinished(myProject);
@@ -100,7 +109,7 @@ public class GitCherryPicker {
 
   // return true to continue with other roots, false to break execution
   private boolean cherryPick(@NotNull GitRepository repository, @NotNull List<VcsFullCommitDetails> commits,
-                             @NotNull List<GitCommitWrapper> successfulCommits) {
+                             @NotNull List<GitCommitWrapper> successfulCommits, @NotNull List<GitCommitWrapper> alreadyPicked) {
     for (VcsFullCommitDetails commit : commits) {
       GitSimpleEventDetector conflictDetector = new GitSimpleEventDetector(CHERRY_PICK_CONFLICT);
       GitSimpleEventDetector localChangesOverwrittenDetector = new GitSimpleEventDetector(LOCAL_CHANGES_OVERWRITTEN_BY_CHERRY_PICK);
@@ -115,7 +124,7 @@ public class GitCherryPicker {
         }
         else {
           boolean committed = updateChangeListManagerShowCommitDialogAndRemoveChangeListOnSuccess(repository, commitWrapper,
-                                                                                                  successfulCommits);
+                                                                                                  successfulCommits, alreadyPicked);
           if (!committed) {
             notifyCommitCancelled(commitWrapper, successfulCommits);
             return false;
@@ -129,7 +138,7 @@ public class GitCherryPicker {
 
         if (mergeCompleted) {
           boolean committed = updateChangeListManagerShowCommitDialogAndRemoveChangeListOnSuccess(repository, commitWrapper,
-                                                                                                  successfulCommits);
+                                                                                                  successfulCommits, alreadyPicked);
           if (!committed) {
             notifyCommitCancelled(commitWrapper, successfulCommits);
             return false;
@@ -156,6 +165,10 @@ public class GitCherryPicker {
                     commitWrapper, successfulCommits);
         return false;
       }
+      else if (isNothingToCommitMessage(result)) {
+        alreadyPicked.add(commitWrapper);
+        return true;
+      }
       else {
         notifyError(result.getErrorOutputAsHtmlString(), commitWrapper, successfulCommits);
         return false;
@@ -164,26 +177,32 @@ public class GitCherryPicker {
     return true;
   }
 
+  private static boolean isNothingToCommitMessage(@NotNull GitCommandResult result) {
+    if (!result.getErrorOutputAsJoinedString().isEmpty()) {
+      return false;
+    }
+    String stdout = result.getOutputAsJoinedString();
+    return stdout.contains("nothing to commit") || stdout.contains("previous cherry-pick is now empty");
+  }
+
   private boolean updateChangeListManagerShowCommitDialogAndRemoveChangeListOnSuccess(@NotNull GitRepository repository,
                                                                                       @NotNull GitCommitWrapper commit,
-                                                                                      @NotNull List<GitCommitWrapper> successfulCommits) {
+                                                                                      @NotNull List<GitCommitWrapper> successfulCommits,
+                                                                                      @NotNull List<GitCommitWrapper> alreadyPicked) {
     CherryPickData data = updateChangeListManager(commit.getCommit());
+    if (data == null) {
+      alreadyPicked.add(commit);
+      return true;
+    }
     boolean committed = showCommitDialogAndWaitForCommit(repository, commit, data.myChangeList, data.myCommitMessage);
     if (committed) {
-      removeChangeList(data);
+      myChangeListManager.removeChangeList(data.myChangeList);
       successfulCommits.add(commit);
       return true;
     }
     return false;
   }
 
-  private void removeChangeList(CherryPickData list) {
-    myChangeListManager.setDefaultChangeList(list.myPreviouslyDefaultChangeList);
-    if (!myChangeListManager.getDefaultChangeList().equals(list.myChangeList)) {
-      myChangeListManager.removeChangeList(list.myChangeList);
-    }
-  }
-
   private void notifyConflictWarning(@NotNull GitRepository repository, @NotNull GitCommitWrapper commit,
                                      @NotNull List<GitCommitWrapper> successfulCommits) {
     NotificationListener resolveLinkListener = new ResolveLinkListener(myProject, myGit, myPlatformFacade, repository.getRoot(),
@@ -206,16 +225,16 @@ public class GitCherryPicker {
     VcsNotifier.getInstance(myProject).notifyMinorWarning("Cherry-pick cancelled", description, null);
   }
 
+  @Nullable
   private CherryPickData updateChangeListManager(@NotNull final VcsFullCommitDetails commit) {
     final Collection<FilePath> paths = ChangesUtil.getPaths(commit.getChanges());
     refreshChangedFiles(paths);
     final String commitMessage = createCommitMessage(commit);
-    LocalChangeList previouslyDefaultChangeList = myChangeListManager.getDefaultChangeList();
     LocalChangeList changeList = createChangeListAfterUpdate(commit, paths, commitMessage);
-    return new CherryPickData(changeList, commitMessage, previouslyDefaultChangeList);
+    return changeList == null ? null : new CherryPickData(changeList, commitMessage);
   }
 
-  @NotNull
+  @Nullable
   private LocalChangeList createChangeListAfterUpdate(@NotNull final VcsFullCommitDetails commit, @NotNull final Collection<FilePath> paths,
                                                       @NotNull final String commitMessage) {
     final AtomicReference<LocalChangeList> changeList = new AtomicReference<LocalChangeList>();
@@ -224,7 +243,7 @@ public class GitCherryPicker {
       public void run() {
         myChangeListManager.invokeAfterUpdate(new Runnable() {
                                                 public void run() {
-                                                  changeList.set(createChangeList(commit, commitMessage));
+                                                  changeList.set(createChangeListIfThereAreChanges(commit, commitMessage));
                                                 }
                                               }, InvokeAfterUpdateMode.SYNCHRONOUS_NOT_CANCELLABLE, "Cherry-pick",
                                               new Consumer<VcsDirtyScopeManager>() {
@@ -346,9 +365,37 @@ public class GitCherryPicker {
     return description;
   }
 
-  private void notifySuccess(@NotNull List<GitCommitWrapper> successfulCommits) {
-    String description = getCommitsDetails(successfulCommits);
-    VcsNotifier.getInstance(myProject).notifySuccess("Cherry-pick successful", description);
+  private void notifyResult(@NotNull List<GitCommitWrapper> successfulCommits, @NotNull List<GitCommitWrapper> alreadyPicked) {
+    if (alreadyPicked.isEmpty()) {
+      VcsNotifier.getInstance(myProject).notifySuccess("Cherry-pick successful", getCommitsDetails(successfulCommits));
+    }
+    else if (!successfulCommits.isEmpty()) {
+      String title = String.format("Cherry-picked %d commits from %d", successfulCommits.size(),
+                                   successfulCommits.size() + alreadyPicked.size());
+      String description = getCommitsDetails(successfulCommits) + "<hr/>" + formAlreadyPickedDescription(alreadyPicked, true);
+      VcsNotifier.getInstance(myProject).notifySuccess(title, description);
+    }
+    else {
+      VcsNotifier.getInstance(myProject).notifyImportantWarning("Nothing to cherry-pick",
+                                                                formAlreadyPickedDescription(alreadyPicked, false));
+    }
+  }
+
+  @NotNull
+  private static String formAlreadyPickedDescription(@NotNull List<GitCommitWrapper> alreadyPicked, boolean but) {
+
+    String hashes = StringUtil.join(alreadyPicked, new Function<GitCommitWrapper, String>() {
+      @Override
+      public String fun(GitCommitWrapper commit) {
+        return commit.getCommit().getId().toShortString();
+      }
+    }, ", ");
+    if (but) {
+      String wasnt = alreadyPicked.size() == 1 ? "wasn't" : "weren't";
+      String it = alreadyPicked.size() == 1 ? "it" : "them";
+      return String.format("%s %s picked, because all changes from %s have already been applied.", hashes, wasnt, it);
+    }
+    return String.format("All changes from %s have already been applied", hashes);
   }
 
   @NotNull
@@ -373,19 +420,69 @@ public class GitCherryPicker {
       }
     }));
     VfsUtil.markDirtyAndRefresh(false, false, false, ArrayUtil.toObjectArray(virtualFiles, VirtualFile.class));
+    VcsDirtyScopeManager.getInstance(myProject).filePathsDirty(filePaths, null);
   }
 
-  @NotNull
-  private LocalChangeList createChangeList(@NotNull VcsFullCommitDetails commit, @NotNull String commitMessage) {
-    Collection<Change> changes = commit.getChanges();
-    if (!changes.isEmpty()) {
-      String changeListName = createNameForChangeList(commitMessage, 0).replace('\n', ' ');
-      final LocalChangeList changeList = ((ChangeListManagerEx)myChangeListManager).addChangeList(changeListName, commitMessage, commit);
-      myChangeListManager.moveChangesTo(changeList, changes.toArray(new Change[changes.size()]));
-      myChangeListManager.setDefaultChangeList(changeList);
+  @Nullable
+  private LocalChangeList createChangeListIfThereAreChanges(@NotNull VcsFullCommitDetails commit, @NotNull String commitMessage) {
+    Collection<Change> originalChanges = commit.getChanges();
+    if (originalChanges.isEmpty()) {
+      LOG.info("Empty commit " + commit.getId());
+      return null;
+    }
+    if (noChangesAfterCherryPick(originalChanges)) {
+      LOG.info("No changes after cherry-picking " + commit.getId());
+      return null;
+    }
+
+    String changeListName = createNameForChangeList(commitMessage, 0).replace('\n', ' ');
+    LocalChangeList changeList = ((ChangeListManagerEx)myChangeListManager).addChangeList(changeListName, commitMessage, commit);
+    changeList = (LocalChangeList)moveChanges(originalChanges, changeList);
+    if (changeList != null && !changeList.getChanges().isEmpty()) {
       return changeList;
     }
-    return myChangeListManager.getDefaultChangeList();
+    LOG.warn("No changes were moved to the changelist. Changes from commit: " + originalChanges +
+             "\nAll changes: " + myChangeListManager.getAllChanges());
+    myChangeListManager.removeChangeList(changeList);
+    return null;
+  }
+
+  private boolean noChangesAfterCherryPick(@NotNull Collection<Change> originalChanges) {
+    final Collection<Change> allChanges = myChangeListManager.getAllChanges();
+    return !ContainerUtil.exists(originalChanges, new Condition<Change>() {
+      @Override
+      public boolean value(Change change) {
+        return allChanges.contains(change);
+      }
+    });
+  }
+
+  @Nullable
+  private ChangeList moveChanges(@NotNull Collection<Change> originalChanges, @NotNull LocalChangeList targetChangeList) {
+    // 1. We have to listen to CLM changes, because moveChangesTo is asynchronous
+    // 2. We have to collect the real target change list, because the original target list (passed to moveChangesTo) is not updated in time.
+    final CountDownLatch moveChangesWaiter = new CountDownLatch(1);
+    final AtomicReference<ChangeList> resultingChangeList = new AtomicReference<ChangeList>();
+    ChangeListAdapter listener = new ChangeListAdapter() {
+      @Override
+      public void changesMoved(Collection<Change> changes, ChangeList fromList, ChangeList toList) {
+        resultingChangeList.set(toList);
+        moveChangesWaiter.countDown();
+      }
+    };
+    try {
+      myChangeListManager.addChangeListListener(listener);
+      myChangeListManager.moveChangesTo(targetChangeList, originalChanges.toArray(new Change[originalChanges.size()]));
+      moveChangesWaiter.await(100, TimeUnit.SECONDS);
+      return resultingChangeList.get();
+    }
+    catch (InterruptedException e) {
+      LOG.error(e);
+      return null;
+    }
+    finally {
+      myChangeListManager.removeChangeListListener(listener);
+    }
   }
 
   @NotNull
@@ -403,14 +500,12 @@ public class GitCherryPicker {
   }
 
   private static class CherryPickData {
-    private final LocalChangeList myChangeList;
-    private final String myCommitMessage;
-    private final LocalChangeList myPreviouslyDefaultChangeList;
+    @NotNull private final LocalChangeList myChangeList;
+    @NotNull private final String myCommitMessage;
 
-    private CherryPickData(LocalChangeList list, String message, LocalChangeList previouslyDefaultChangeList) {
+    private CherryPickData(@NotNull LocalChangeList list, @NotNull String message) {
       myChangeList = list;
       myCommitMessage = message;
-      myPreviouslyDefaultChangeList = previouslyDefaultChangeList;
     }
   }
 

plugins/git4idea/src/git4idea/push/GitPushTagMode.java

@@ -20,7 +20,7 @@ import org.jetbrains.annotations.NotNull;
 
 /**
  */
-public class GitPushTagMode implements VcsPushOptionValue {
+public final class GitPushTagMode implements VcsPushOptionValue {
 
   public static GitPushTagMode ALL = new GitPushTagMode("All", "--tags");
   public static GitPushTagMode FOLLOW = new GitPushTagMode("Current Branch", "--follow-tags");
@@ -28,7 +28,13 @@ public class GitPushTagMode implements VcsPushOptionValue {
   @NotNull private final String myTitle;
   @NotNull private final String myArgument;
 
-  public GitPushTagMode(@NotNull String title, @NotNull String argument) {
+  // for deserialization
+  @SuppressWarnings("UnusedDeclaration")
+  public GitPushTagMode() {
+    this(ALL.getTitle(), ALL.getArgument());
+  }
+
+  private GitPushTagMode(@NotNull String title, @NotNull String argument) {
     myTitle = title;
     myArgument = argument;
   }
@@ -47,4 +53,24 @@ public class GitPushTagMode implements VcsPushOptionValue {
   public String getArgument() {
     return myArgument;
   }
+
+  @Override
+  public boolean equals(Object o) {
+    if (this == o) return true;
+    if (o == null || getClass() != o.getClass()) return false;
+
+    GitPushTagMode mode = (GitPushTagMode)o;
+
+    if (!myArgument.equals(mode.myArgument)) return false;
+    if (!myTitle.equals(mode.myTitle)) return false;
+
+    return true;
+  }
+
+  @Override
+  public int hashCode() {
+    int result = myTitle.hashCode();
+    result = 31 * result + myArgument.hashCode();
+    return result;
+  }
 }

plugins/git4idea/test-features/git4idea/cherry-pick-auto-commit.feature

@@ -4,12 +4,11 @@ Background:
   Given enabled auto-commit in the settings
   Given new committed files file.txt, a.txt, conflict.txt with initial content
   Given branch feature
-
   Given commit f5027a3 on branch feature
     """
     fix #1
     Author: John Bro
-    M file.txt "feature changes"
+    M file.txt "initial content\nfeature changes"
     """
 
   Scenario: Simple cherry-pick
@@ -82,7 +81,7 @@ Background:
       M conflict.txt "feature version"
       """
     When I cherry-pick the commit bb6453c and don't resolve conflicts
-    Then active changelist is 'feature content (cherry picked from commit bb6453c)'
+    Then there is changelist 'feature content (cherry picked from commit bb6453c)'
     And warning notification is shown 'Cherry-picked with conflicts'
       """
       bb6453c feature content
@@ -137,7 +136,7 @@ Background:
       M conflict.txt "feature version"
       """
     When I cherry-pick the commit bb6453c, resolve conflicts and don't commit
-    Then active changelist is 'feature content (cherry picked from commit bb6453c)'
+    Then there is changelist 'feature content (cherry picked from commit bb6453c)'
     And no notification is shown
 
   Scenario: Cherry-pick 2 commits
@@ -220,53 +219,53 @@ Background:
       """
     And merge dialog should be shown
 
-  #Scenario: Notify if changes have already been applied (IDEA-73548)
-  #  Given commit eef9832 on branch master
-  #    """
-  #    fix #1 manually incorporated
-  #    M file.txt "feature changes"
-  #    """
-  #  When I cherry-pick the commit f5027a3
-  #  Then the last commit is eef9832
-  #  And warning notification is shown 'Nothing to cherry-pick'
-  #    """
-  #    All changes from f5027a3 fix #1 have already been applied
-  #    """
-  #
-  #Scenario: Cherry-pick 3 commits, second commit have already been applied (IDEA-73548)
-  #  Given commit c123abc on branch feature
-  #    """
-  #    fix #2
-  #    M file.txt "feature changes\nmore feature changes"
-  #    """
-  #  Given commit d123abc on branch feature
-  #    """
-  #    fix #3
-  #    M file.txt "feature changes\nmore feature changes\nmore feature changes"
-  #    """
-  #  Given commit e123abc on branch feature
-  #    """
-  #    fix for f2
-  #    M a.txt "feature changes"
-  #    """
-  #  Given commit e098fed on branch master
-  #    """
-  #    fix for f2 manually incorporated
-  #    M a.txt "feature changes"
-  #    """
-  #  When I cherry-pick commits c123abc, d123abc and e123abc
-  #  Then `git log -2` should return
-  #    """
-  #    fix #3
-  #    (cherry picked from commit c123abc)
-  #    -----
-  #    fix #2
-  #    (cherry picked from commit f5027a3)
-  #    """
-  #  And warning notification is shown 'Cherry-picked 2 commits'
-  #    """
-  #    c123abc fix #2
-  #    d123abc fix #3
-  #    <hr/>
-  #    Commit e123abc wasn't picked, because all changes from it have already been applied.
-  #    """
+  Scenario: Notify if changes have already been applied (IDEA-73548)
+    Given commit eef9832 on branch master
+      """
+      fix #1 manually incorporated
+      M file.txt "initial content\nfeature changes"
+      """
+    When I cherry-pick the commit f5027a3
+    Then the last commit is eef9832
+    And warning notification is shown 'Nothing to cherry-pick'
+      """
+      All changes from f5027a3 have already been applied
+      """
+
+  Scenario: Cherry-pick 3 commits, second commit have already been applied (IDEA-73548)
+    Given commit c123abc on branch feature
+      """
+      fix #2
+      A newfile.txt "initial content"
+      """
+    Given commit d123abc on branch feature
+      """
+      fix #3
+      M newfile.txt "initial content\nfeature changes"
+      """
+    Given commit e123abc on branch feature
+      """
+      fix for f2
+      M a.txt "initial content\nfeature changes"
+      """
+    Given commit e098fed on branch master
+      """
+      fix for f2 manually incorporated
+      M a.txt "initial content\nfeature changes"
+      """
+    When I cherry-pick commits c123abc, d123abc and e123abc
+    Then `git log -2` should return
+      """
+      fix #3
+      (cherry picked from commit d123abc)
+      -----
+      fix #2
+      (cherry picked from commit c123abc)
+      """
+    And success notification is shown 'Cherry-picked 2 commits from 3'
+      """
+      c123abc fix #2
+      d123abc fix #3
+      <hr/>
+      e123abc wasn't picked, because all changes from it have already been applied.
+      """

plugins/git4idea/test-features/git4idea/cherry-pick-without-auto-commit.feature

@@ -15,8 +15,6 @@ Feature: Git Cherry-Pick When Auto-Commit is deselected
   Scenario: Simple cherry-pick
     When I cherry-pick the commit f5027a3
     Then commit dialog should be shown
-    And active changelist is 'fix #1 (cherry picked from commit f5027a3)'
-
 
   Scenario: Simple cherry-pick, agree to commit
     When I cherry-pick the commit f5027a3 and commit
@@ -34,7 +32,7 @@ Feature: Git Cherry-Pick When Auto-Commit is deselected
   Scenario: Simple cherry-pick, cancel commit
     When I cherry-pick the commit f5027a3 and don't commit
     Then nothing is committed
-    And active changelist is 'fix #1 (cherry picked from commit f5027a3)'
+    And there is changelist 'fix #1 (cherry picked from commit f5027a3)'
     And no notification is shown
 
   Scenario: Cherry-pick 2 commits
@@ -67,7 +65,7 @@ Feature: Git Cherry-Pick When Auto-Commit is deselected
       (cherry picked from commit f5027a3)
       """
     And working tree is dirty
-    And active changelist is 'fix #2 (cherry picked from commit abc1234)'
+    And there is changelist 'fix #2 (cherry picked from commit abc1234)'
     And warning notification is shown 'Cherry-pick cancelled'
       """
       abc1234 fix #2

plugins/git4idea/test-stepdefs/git4idea/CommitDetails.java

@@ -18,12 +18,13 @@ package git4idea;
 import com.intellij.openapi.util.Pair;
 import com.intellij.openapi.util.text.StringUtil;
 
+import java.io.IOException;
 import java.util.ArrayList;
 import java.util.Collection;
 import java.util.regex.Matcher;
 import java.util.regex.Pattern;
 
-import static com.intellij.openapi.vcs.Executor.echo;
+import static com.intellij.openapi.vcs.Executor.overwrite;
 import static com.intellij.openapi.vcs.Executor.touch;
 import static git4idea.GitCucumberWorld.virtualCommits;
 import static git4idea.test.GitExecutor.git;
@@ -42,10 +43,10 @@ public class CommitDetails {
 
   private static class Change {
 
-    public void apply() {
+    public void apply() throws IOException {
       switch (myType) {
         case MODIFIED:
-          echo(myFile, myContent);
+          overwrite(myFile, myContent);
           break;
         case ADDED:
           touch(myFile, myContent);
@@ -159,7 +160,7 @@ public class CommitDetails {
     int secondSpace = change.indexOf(' ', firstSpace + 1);
     return new Change(parseType(change.substring(0, firstSpace)),
                       change.substring(firstSpace + 1, secondSpace),
-                      change.substring(secondSpace + 1));
+                      StringUtil.unescapeStringCharacters(StringUtil.unquoteString(change.substring(secondSpace + 1))));
   }
 
   private static Change.Type parseType(String type) {
@@ -181,7 +182,7 @@ public class CommitDetails {
   /**
    * @return real commit details.
    */
-  public CommitDetails apply() {
+  public CommitDetails apply() throws IOException {
     for (Change change : myChanges) {
       change.apply();
     }

plugins/git4idea/test-stepdefs/git4idea/GeneralStepdefs.java

@@ -70,14 +70,15 @@ public class GeneralStepdefs {
                             notificationType.equals("error") ? NotificationType.ERROR : null;
     Notification actualNotification = lastNotification();
     assertNotNull("Notification should be shown", actualNotification);
-    assertEquals("Notification type is incorrect", type, actualNotification.getType());
-    assertEquals("Notification title is incorrect", title, actualNotification.getTitle());
+    assertEquals("Notification type is incorrect in " + actualNotification, type, actualNotification.getType());
+    assertEquals("Notification title is incorrect in" + actualNotification, title, actualNotification.getTitle());
     assertNotificationContent(content, actualNotification.getContent());
   }
 
   private static void assertNotificationContent(String expected, String actual) {
     expected = virtualCommits.replaceVirtualHashes(expected);
-    assertEquals("Notification content is incorrect", StringUtil.convertLineSeparators(expected), StringUtil.convertLineSeparators(adjustNotificationContent(actual)));
+    assertEquals("Notification content is incorrect", StringUtil.convertLineSeparators(expected),
+                 StringUtil.convertLineSeparators(adjustNotificationContent(actual)));
   }
 
   private static String adjustNotificationContent(String content) {

plugins/git4idea/test-stepdefs/git4idea/GitCherryPickStepdefs.java

@@ -15,33 +15,30 @@
  */
 package git4idea;
 
-import com.google.common.base.Function;
-import com.google.common.collect.Collections2;
-import com.intellij.mock.MockVirtualFile;
-import com.intellij.openapi.components.ServiceManager;
-import com.intellij.openapi.util.ThrowableComputable;
+import com.intellij.openapi.util.Condition;
 import com.intellij.openapi.util.text.StringUtil;
-import com.intellij.openapi.vcs.FilePathImpl;
-import com.intellij.openapi.vcs.changes.Change;
+import com.intellij.openapi.vcs.VcsException;
 import com.intellij.openapi.vcs.changes.LocalChangeList;
-import com.intellij.openapi.vcs.history.VcsRevisionNumber;
-import com.intellij.openapi.vfs.newvfs.impl.NullVirtualFile;
+import com.intellij.openapi.vfs.VirtualFile;
 import com.intellij.testFramework.vcs.MockChangeListManager;
-import com.intellij.testFramework.vcs.MockContentRevision;
+import com.intellij.util.ArrayUtil;
+import com.intellij.util.Function;
 import com.intellij.util.containers.ContainerUtil;
-import com.intellij.vcs.log.Hash;
 import com.intellij.vcs.log.VcsFullCommitDetails;
-import com.intellij.vcs.log.VcsLogObjectsFactory;
-import com.intellij.vcs.log.impl.HashImpl;
 import cucumber.annotation.en.And;
 import cucumber.annotation.en.Given;
 import cucumber.annotation.en.Then;
 import cucumber.annotation.en.When;
 import git4idea.cherrypick.GitCherryPicker;
 import git4idea.config.GitVersionSpecialty;
+import git4idea.history.GitHistoryUtils;
 import git4idea.test.MockVcsHelper;
+import org.jetbrains.annotations.NotNull;
 
-import java.util.*;
+import java.util.ArrayList;
+import java.util.Arrays;
+import java.util.Collections;
+import java.util.List;
 
 import static com.intellij.openapi.vcs.Executor.echo;
 import static git4idea.GitCucumberWorld.*;
@@ -63,7 +60,7 @@ public class GitCherryPickStepdefs {
   }
 
   @When("^I cherry-pick the commit (\\w+)$")
-  public void I_cherry_pick_the_commit(String hash) {
+  public void I_cherry_pick_the_commit(String hash) throws VcsException {
     cherryPick(hash);
   }
 
@@ -175,6 +172,11 @@ public class GitCherryPickStepdefs {
         expectedMessage = expectedMessage.replace("\n", "").replace(" ", "");
         actualMessage = actualMessage.replace("\n", "").replace(" ", "");
       }
+      else {
+        // replace just double \n between subject and body to avoid lengthy feature steps
+        expectedMessage = expectedMessage.replace("\n\n", "\n");
+        actualMessage = actualMessage.replace("\n\n", "\n");
+      }
       expectedMessage = virtualCommits.replaceVirtualHashes(expectedMessage);
       assertEquals("Commit doesn't match", expectedMessage, trimHash(actualMessage));
     }
@@ -214,62 +216,45 @@ public class GitCherryPickStepdefs {
     assertTrue("Commit dialog was not shown", myVcsHelper.commitDialogWasShown());
   }
 
-  @Then("^active changelist is '(.+)'$")
-  public void active_changelist_is(String name) throws Throwable {
-    assertActiveChangeList(virtualCommits.replaceVirtualHashes(name));
+  @Then("^there is changelist '(.*)'$")
+  public void there_is_changelist(@NotNull final String name) throws Throwable {
+    List<LocalChangeList> changeLists = myChangeListManager.getChangeListsCopy();
+    assertTrue("Didn't find changelist with name '" + name + "' among :" + changeLists,
+               ContainerUtil.exists(changeLists, new Condition<LocalChangeList>() {
+                 @Override
+                 public boolean value(LocalChangeList list) {
+                   return list.getName().equals(virtualCommits.replaceVirtualHashes(name));
+                 }
+               }));
   }
 
   private static void assertOnlyDefaultChangelist() {
     String DEFAULT = MockChangeListManager.DEFAULT_CHANGE_LIST_NAME;
-    assertChangeLists(Collections.singleton(DEFAULT), DEFAULT);
+    assertEquals("Only default change list is expected", 1, myChangeListManager.getChangeListsNumber());
+    assertEquals("Default changelist is not active", DEFAULT, myChangeListManager.getDefaultChangeList().getName());
   }
 
-  private static void assertChangeLists(Collection<String> changeLists, String activeChangelist) {
-    List<LocalChangeList> lists = myChangeListManager.getChangeLists();
-    Collection<String> listNames = Collections2.transform(lists, new Function<LocalChangeList, String>() {
+  private static void cherryPick(final List<String> virtualHashes) throws VcsException {
+    List<VcsFullCommitDetails> commits = loadDetails(ContainerUtil.map(virtualHashes, new Function<String, String>() {
       @Override
-      public String apply(LocalChangeList input) {
-        return input.getName();
+      public String fun(String virtualHash) {
+        return virtualCommits.getRealCommit(virtualHash).getHash();
       }
-    });
-    assertEquals("Change lists are different", new ArrayList<String>(changeLists), new ArrayList<String>(listNames));
-    assertActiveChangeList(activeChangelist);
-  }
+    }), myProjectDir);
 
-  private static void assertActiveChangeList(String name) {
-    assertEquals("Wrong active changelist", name, myChangeListManager.getDefaultChangeList().getName());
-  }
-
-  private static void cherryPick(List<String> virtualHashes) {
-    List<VcsFullCommitDetails> commits = ContainerUtil.newArrayList();
-    for (String virtualHash : virtualHashes) {
-      commits.add(createMockCommit(virtualHash));
-    }
     new GitCherryPicker(myProject, myGit, myPlatformFacade, mySettings.isAutoCommitOnCherryPick())
-      .cherryPick(Collections.singletonMap(myRepository, commits));
+        .cherryPick(Collections.singletonMap(myRepository, commits));
   }
 
-  private static void cherryPick(String... virtualHashes) {
+  private static List<VcsFullCommitDetails> loadDetails(List<String> hashes, @NotNull VirtualFile root) throws VcsException {
+    String noWalk = GitVersionSpecialty.NO_WALK_UNSORTED.existsIn(myVcs.getVersion()) ? "--no-walk=unsorted" : "--no-walk";
+    List<String> params = new ArrayList<String>();
+    params.add(noWalk);
+    params.addAll(hashes);
+    return new ArrayList<VcsFullCommitDetails>(GitHistoryUtils.history(myProject, root, ArrayUtil.toStringArray(params)));
+  }
+
+  private static void cherryPick(String... virtualHashes) throws VcsException {
     cherryPick(Arrays.asList(virtualHashes));
   }
-
-  private static VcsFullCommitDetails createMockCommit(String virtualHash) {
-    CommitDetails realCommit = virtualCommits.getRealCommit(virtualHash);
-    return mockCommit(realCommit.getHash(), realCommit.getMessage());
-  }
-
-  private static VcsFullCommitDetails mockCommit(String hash, String message) {
-    final List<Change> changes = new ArrayList<Change>();
-    changes.add(new Change(null, new MockContentRevision(new FilePathImpl(new MockVirtualFile("name")), VcsRevisionNumber.NULL)));
-    return ServiceManager.getService(myProject, VcsLogObjectsFactory.class).createFullDetails(
-      HashImpl.build(hash), Collections.<Hash>emptyList(), 0, NullVirtualFile.INSTANCE, message, "John Smith", "john@mail.com", message,
-      "John Smith", "john@mail.com", 0, new ThrowableComputable<Collection<Change>, Exception>() {
-        @Override
-        public Collection<Change> compute() throws Exception {
-          return changes;
-        }
-      }
-    );
-  }
-
 }

plugins/gradle/src/org/jetbrains/plugins/gradle/service/project/GradleExecutionHelper.java

@@ -152,6 +152,12 @@ public class GradleExecutionHelper {
       commandLineArgs.add(GradleConstants.OFFLINE_MODE_CMD_OPTION);
     }
 
+    final Application application = ApplicationManager.getApplication();
+    if(application != null && application.isUnitTestMode()) {
+      commandLineArgs.add("--info");
+      commandLineArgs.add("--recompile-scripts");
+    }
+
     if (!commandLineArgs.isEmpty()) {
       LOG.info("Passing command-line args to Gradle Tooling API: " + commandLineArgs);
       // filter nulls and empty strings
@@ -224,7 +230,7 @@ public class GradleExecutionHelper {
         }
       }
       catch (Throwable e) {
-        // ignore
+        LOG.debug("Gradle connection close error", e);
       }
     }
   }

plugins/gradle/testSources/org/jetbrains/plugins/gradle/importing/GradleImportingTestCase.java

@@ -30,9 +30,9 @@ import org.gradle.wrapper.GradleWrapperMain;
 import org.intellij.lang.annotations.Language;
 import org.jetbrains.annotations.NonNls;
 import org.jetbrains.annotations.NotNull;
-import org.jetbrains.plugins.gradle.remote.GradleJavaHelper;
 import org.jetbrains.plugins.gradle.settings.DistributionType;
 import org.jetbrains.plugins.gradle.settings.GradleProjectSettings;
+import org.jetbrains.plugins.gradle.settings.GradleSettings;
 import org.jetbrains.plugins.gradle.util.GradleConstants;
 import org.junit.Rule;
 import org.junit.rules.TestName;
@@ -73,6 +73,7 @@ public abstract class GradleImportingTestCase extends ExternalSystemImportingTes
   public void setUp() throws Exception {
     super.setUp();
     myProjectSettings = new GradleProjectSettings();
+    GradleSettings.getInstance(myProject).setGradleVmOptions("-Xmx64m -XX:MaxPermSize=64m");
     System.setProperty(ExternalSystemExecutionSettings.REMOTE_PROCESS_IDLE_TTL_IN_MS_KEY, String.valueOf(GRADLE_DAEMON_TTL_MS));
     configureWrapper();
   }

plugins/gradle/tooling-extension-impl/testSources/org/jetbrains/plugins/gradle/tooling/builder/AbstractModelBuilderTest.java

@@ -123,14 +123,19 @@ public abstract class AbstractModelBuilderTest {
     ((DefaultGradleConnector)connector).daemonMaxIdleTime(daemonMaxIdleTime, TimeUnit.SECONDS);
     ProjectConnection connection = connector.connect();
 
-    final ProjectImportAction projectImportAction = new ProjectImportAction(false);
-    projectImportAction.addExtraProjectModelClasses(getModels());
-    BuildActionExecuter<ProjectImportAction.AllModels> buildActionExecutor = connection.action(projectImportAction);
-    File initScript = GradleExecutionHelper.generateInitScript(false, getToolingExtensionClasses());
-    assertNotNull(initScript);
-    buildActionExecutor.withArguments("--recompile-scripts", GradleConstants.INIT_SCRIPT_CMD_OPTION, initScript.getAbsolutePath());
-    allModels = buildActionExecutor.run();
-    assertNotNull(allModels);
+    try {
+      final ProjectImportAction projectImportAction = new ProjectImportAction(false);
+      projectImportAction.addExtraProjectModelClasses(getModels());
+      BuildActionExecuter<ProjectImportAction.AllModels> buildActionExecutor = connection.action(projectImportAction);
+      File initScript = GradleExecutionHelper.generateInitScript(false, getToolingExtensionClasses());
+      assertNotNull(initScript);
+      buildActionExecutor.setJvmArguments("-Xmx64m", "-XX:MaxPermSize=64m");
+      buildActionExecutor.withArguments("--info", "--recompile-scripts", GradleConstants.INIT_SCRIPT_CMD_OPTION, initScript.getAbsolutePath());
+      allModels = buildActionExecutor.run();
+      assertNotNull(allModels);
+    } finally {
+      connection.close();
+    }
   }
 
   @NotNull

plugins/testng/src/com/theoryinpractice/testng/configuration/SearchingForTestsTask.java

@@ -207,14 +207,17 @@ public class SearchingForTestsTask extends Task.Backgroundable {
           }
         }
       }
-      map.put(ApplicationManager.getApplication().runReadAction(
+      final String className = ApplicationManager.getApplication().runReadAction(
         new Computable<String>() {
           @Nullable
           public String compute() {
             return ClassUtil.getJVMClassName(entry.getKey());
           }
         }
-      ), methods);
+      );
+      if (className != null) {
+        map.put(className, methods);
+      }
     }
     // We have groups we wish to limit to.
     Collection<String> groupNames = null;

python/helpers/python-skeletons/AUTHORS.txt

@@ -0,0 +1,7 @@
+The current maintainer:
+
+* Andrey Vlasovskikh <andrey.vlasovskikh@jetbrains.com>
+
+Contributors:
+
+TODO: The list of contributors

python/helpers/python-skeletons/LICENSE.txt

@@ -0,0 +1,13 @@
+Copyright 2013 The python-skeletons authors
+
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+
+    http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.

python/helpers/python-skeletons/README.md

@@ -0,0 +1,237 @@
+Python Skeletons
+================
+
+_This proposal is a draft._
+
+Python skeletons are Python files that contain API definitions of existing
+libraries extended for static analysis tools.
+
+Rationale
+---------
+
+Python is a dynamic language less suitable for static code analysis than static
+languages like C or Java. Although Python static analysis tools can extract
+some information from Python source code without executing it, this information
+is often very shallow and incomplete.
+
+Dynamic features of Python are very useful for user code. But using these
+features in APIs of third-party libraries and the standard library is not
+always a good idea. Tools (and users, in fact) need clear definitions of APIs.
+Often library API definitions are quite static and easy to grasp (defined
+using `class`, `def`), but types of function parameters and return values
+usually are not specified. Sometimes API definitions involve metaprogramming.
+
+As there is not enough information in API definition code of libraries,
+developers of static analysis tools collect extended API data themselves and
+store it in their own formats. For example, PyLint uses imperative AST
+transformations of API modules in order to extend them with hard-coded data.
+PyCharm extends APIs via its proprietary database of declarative type
+annotations. The absence of a common extended API information format makes it
+hard for developers and users of tools to collect and share data.
+
+
+Proposal
+--------
+
+The proposal is to create a common database of extended API definitions as a
+collection of Python files called skeletons. Static analysis tools already
+understand Python code, so it should be easy to start extracting API
+definitions from these Python skeleton files. Regular function and class
+definitions can be extended with additional docstrings and decorators, e.g. for
+providing types of function parameters and return values. Static analysis tools
+may use a subset of information contained in skeleton files needed for their
+operation. Using Python files instead of a custom API definition format will
+also make it easier for users to populate the skeletons database.
+
+Declarative Python API definitions for static analysis tools cannot cover all
+dynamic tricks used in real APIs of libraries: some of them still require
+library-specific code analysis. Nevertheless the skeletons database is enough
+for many libraries.
+
+The proposed [python-skeletons](https://github.com/JetBrains/python-skeletons)
+repository is hosted on GitHub.
+
+
+Conventions
+-----------
+
+Skeletons should contain syntactically correct Python code, preferably compatible
+with Python 2.6-3.3.
+
+Skeletons should respect [PEP-8](http://www.python.org/dev/peps/pep-0008/) and
+[PEP-257](http://www.python.org/dev/peps/pep-0257/) style guides.
+
+If you need to reference the members of the original module of a skeleton, you
+should import it explicitly. For example, in a skeleton for the `foo` module:
+
+    import foo
+
+
+    class C(foo.B):
+        def bar():
+            """Do bar and return Bar.
+
+            :rtype: foo.Bar
+            """
+            return foo.Bar()
+
+Modules can be referenced in docstring without explicit imports.
+
+The body of a function in a skeleton file should consist of a single `return`
+statement that returns a simple value of the declared return type (e.g. `0`
+for `int`, `False` for `bool`, `Foo()` for `Foo`). If the function returns
+something non-trivial, its may consist of a `pass` statement.
+
+
+### Types
+
+There is no standard notation for specifying types in Python code. We would
+like this standard to emerge, see the related work below.
+
+The current understanding is that a standard for optional type annotations in
+Python could use the syntax of function annotations in Python 3 and decorators
+as a fallback in Python 2. The type system should be relatively simple, but it
+has to include parametric (generic) types for collections and probably more.
+
+As a temporary solution, we propose a simple way of specifying types in
+skeletons using Sphinx docstrings using the following notation:
+
+    Foo                # Class Foo visible in the current scope
+    x.y.Bar            # Class Bar from x.y module
+    Foo | Bar          # Foo or Bar
+    (Foo, Bar)         # Tuple of Foo and Bar
+    list[Foo]          # List of Foo elements
+    dict[Foo, Bar]     # Dict from Foo to Bar
+    T                  # Generic type (T-Z are reserved for generics)
+    T <= Foo           # Generic type with upper bound Foo
+    Foo[T]             # Foo parameterized with T
+    (Foo, Bar) -> Baz  # Function of Foo and Bar that returns Baz
+
+There are several shortcuts available:
+
+    unknown            # Unknown type
+    None               # type(None)
+    string             # Py2: str | unicode, Py3: str
+    bytestring         # Py2: str | unicode, Py3: bytes
+    bytes              # Py2: str, Py3: bytes
+    unicode            # Py2: unicode, Py3: str
+
+The syntax is a subject to change. It is almost compatible to Python (except
+function types), but its semantics differs from Python (no `|`, no implicitly
+visible names, no generic types). So you cannot use these expressions in
+Python 3 function annotations.
+
+If you want to create a parameterized class, you should define its parameters
+in the mock return type of a constructor:
+
+    class C(object):
+        """Some collection C that can contain values of T."""
+
+        def __init__(self, value):
+            """Initialize C.
+
+            :type value: T
+            :rtype: C[T]
+            """
+            pass
+
+        def get(self):
+            """Return the contained value.
+
+            :rtype: T
+            """
+            pass
+
+
+### Versioning
+
+The recommended way of checking the version of Python is:
+
+    import sys
+
+
+    if sys.version_info >= (2, 7) and sys.version_info < (3,):
+        def from_27_until_30():
+            pass
+
+A skeleton should document the most recently released version of a library. Use
+deprecation warnings for functions that have been removed from the API.
+
+Skeletons for built-in symbols is an exception. There are two modules:
+`__builtin__` for Python 2 and `builtins` for Python 3.
+
+
+Related Work
+------------
+
+The JavaScript community is also interested in formalizing API definitions and
+specifying types. They have come up with several JavaScript dialects that
+support optional types: TypeScript, Dart. There is a JavaScript initiative
+similar to the proposed Python skeletons called
+[DefinitelyTyped](https://github.com/borisyankov/DefinitelyTyped). The idea is
+to use TypeScript API stubs for various JavaScript libraries.
+
+There are many approaches to specifying types in Python, none of them is widely
+adopted at the moment:
+
+* A series of old (2005) posts by GvR:
+  [1](http://www.artima.com/weblogs/viewpost.jsp?thread=85551),
+  [2](http://www.artima.com/weblogs/viewpost.jsp?thread=86641),
+  [3](http://www.artima.com/weblogs/viewpost.jsp?thread=87182)
+* String-based [python-rightarrow](https://github.com/kennknowles/python-rightarrow)
+  library
+* Expression-based [typeannotations](https://github.com/ceronman/typeannotations)
+  library for Python 3
+* [mypy](http://www.mypy-lang.org/) Python dialect
+* [pytypes](https://github.com/pytypes/pytypes): Optional typing for Python proposal
+* [Proposal: Use mypy syntax for function annotations](https://mail.python.org/pipermail/python-ideas/2014-August/028618.html) by GvR
+
+See also the notes on function annotations in
+[PEP-8](http://www.python.org/dev/peps/pep-0008/).
+
+
+PyCharm / IntelliJ
+------------------
+
+PyCharm 3 and the Python plugin 3.x for IntelliJ can extract the following
+information from the skeletons:
+
+* Parameters of functions and methods
+* Return types and parameter types of functions and methods
+* Types of assignment targets
+* Extra module members
+* Extra class members
+* TODO
+
+PyCharm 3 comes with a snapshot of the Python skeletons repository (Python
+plugin 3.0.1 for IntelliJ still doesn't include this repository). You
+**should not** modify it, because it will be updated with the PyCharm / Python
+plugin for IntelliJ installation. If you want to change the skeletons, clone
+the skeletons GitHub repository into your PyCharm/IntelliJ config directory:
+
+    cd <config directory>
+    git clone https://github.com/JetBrains/python-skeletons.git
+
+where `<config directory>` is:
+
+* PyCharm
+    * Mac OS X: `~/Library/Preferences/PyCharmXX`
+    * Linux: `~/.PyCharmXX/config`
+    * Windows: `<User home>\.PyCharmXX\config`
+* IntelliJ
+    * Mac OS X: `~/Library/Preferences/IntelliJIdeaXX`
+    * Linux: `~/.IntelliJIdeaXX/config`
+    * Windows: `<User home>\.IntelliJIdeaXX\config`
+
+Please send your PyCharm/IntelliJ-related bug reports and feature requests to
+[PyCharm issue tracker](http://youtrack.jetbrains.com/issues/PY).
+
+
+Feedback
+--------
+
+If you want to contribute, send your pull requests to the Python skeletons
+repository on GitHub. Please make sure, that you follow the conventions above.
+
+Use [code-quality](http://mail.python.org/mailman/listinfo/code-quality)
+mailing list to discuss Python skeletons.

python/helpers/python-skeletons/StringIO.py

@@ -0,0 +1,126 @@
+"""Skeleton for 'StringIO' stdlib module."""
+
+
+import StringIO as _StringIO
+
+
+class StringIO(object):
+    """Reads and writes a string buffer (also known as memory files)."""
+
+    def __init__(self, buffer=None):
+        """When a StringIO object is created, it can be initialized to an existing
+        string by passing the string to the constructor.
+
+        :type buffer: T <= bytes | unicode
+        :rtype: _StringIO.StringIO[T]
+        """
+        self.closed = False
+
+    def getvalue(self):
+        """Retrieve the entire contents of the "file" at any time before the
+        StringIO object's close() method is called.
+
+        :rtype: T
+        """
+        pass
+
+    def close(self):
+        """Free the memory buffer.
+
+        :rtype: None
+        """
+        pass
+
+    def flush(self):
+        """Flush the internal buffer.
+
+        :rtype: None
+        """
+        pass
+
+    def isatty(self):
+        """Return True if the file is connected to a tty(-like) device,
+        else False.
+
+        :rtype: bool
+        """
+        return False
+
+    def __iter__(self):
+        """Return an iterator over lines.
+
+        :rtype: _StringIO.StringIO[T]
+        """
+        return self
+
+    def next(self):
+        """Returns the next input line.
+
+        :rtype: T
+        """
+        pass
+
+    def read(self, size=-1):
+        """Read at most size bytes or characters from the buffer.
+
+        :type size: numbers.Integral
+        :rtype: T
+        """
+        pass
+
+    def readline(self, size=-1):
+        """Read one entire line from the buffer.
+
+        :type size: numbers.Integral
+        :rtype: T
+        """
+        pass
+
+    def readlines(self, sizehint=-1):
+        """Read until EOF using readline() and return a list containing the
+        lines thus read.
+
+        :type sizehint: numbers.Integral
+        :rtype: list[T]
+        """
+        pass
+
+    def seek(self, offset, whence=0):
+        """Set the buffer's current position, like stdio's fseek().
+
+        :type offset: numbers.Integral
+        :type whence: numbers.Integral
+        :rtype: None
+        """
+        pass
+
+    def tell(self):
+        """Return the buffer's current position, like stdio's ftell().
+
+        :rtype: int
+        """
+        pass
+
+    def truncate(self, size=-1):
+        """Truncate the buffer's size.
+
+        :type size: numbers.Integral
+        :rtype: None
+        """
+        pass
+
+    def write(self, str):
+        """"Write bytes or a string to the buffer.
+
+        :type str: T
+        :rtype: None
+        """
+        pass
+
+    def writelines(self, sequence):
+        """Write a sequence of bytes or strings to the buffer.
+
+        :type sequence: collections.Iterable[T]
+        :rtype: None
+        """
+        pass

python/helpers/python-skeletons/asyncio/events.py

@@ -0,0 +1,12 @@
+"""Skeleton for 'asyncio' stdlib module."""
+
+
+import asyncio
+
+
+def get_event_loop():
+    """Get the event loop for the current context.
+
+    :rtype: asyncio.AbstractEventLoop
+    """
+    pass

python/helpers/python-skeletons/behave.py

@@ -0,0 +1,60 @@
+# coding=utf-8
+"""
+Python Behave skeletons (https://pythonhosted.org/behave/)
+"""
+
+
+def given(pattern):
+    """Decorates a function, so that it will become a new step
+    definition.
+    :param pattern pattern to match, may be regular expression or something else depends on step matcher
+    """
+    pass
+
+def when(pattern):
+    """Decorates a function, so that it will become a new step
+    definition.
+    :param pattern pattern to match, may be regular expression or something else depends on step matcher
+    """
+    pass
+
+def then(pattern):
+    """Decorates a function, so that it will become a new step
+    definition.
+    :param pattern pattern to match, may be regular expression or something else depends on step matcher
+    """
+    pass
+
+def step(pattern):
+    """Decorates a function, so that it will become a new step
+    definition.
+    :param pattern pattern to match, may be regular expression or something else depends on step matcher
+    """
+    pass
+def Given(pattern):
+    """Decorates a function, so that it will become a new step
+    definition.
+    :param pattern pattern to match, may be regular expression or something else depends on step matcher
+    """
+    pass
+
+def When(pattern):
+    """Decorates a function, so that it will become a new step
+    definition.
+    :param pattern pattern to match, may be regular expression or something else depends on step matcher
+    """
+    pass
+
+def Then(pattern):
+    """Decorates a function, so that it will become a new step
+    definition.
+    :param pattern pattern to match, may be regular expression or something else depends on step matcher
+    """
+    pass
+
+def Step(pattern):
+    """Decorates a function, so that it will become a new step
+    definition.
+    :param pattern pattern to match, may be regular expression or something else depends on step matcher
+    """
+    pass

python/helpers/python-skeletons/cStringIO.py

@@ -0,0 +1,131 @@
+"""Skeleton for 'cStringIO' stdlib module."""
+
+
+import cStringIO
+
+
+def StringIO(s=None):
+    """Return a StringIO-like stream for reading or writing.
+
+    :type s: T <= bytes | unicode
+    :rtype: cStringIO.OutputType[T]
+    """
+    return cStringIO.OutputType(s)
+
+
+class OutputType(object):
+    def __init__(self, s):
+        """Create an OutputType object.
+
+        :rtype: cStringIO.OutputType[T <= bytes | unicode]
+        """
+        pass
+
+    def getvalue(self):
+        """Retrieve the entire contents of the "file" at any time before the
+        StringIO object's close() method is called.
+
+        :rtype: T
+        """
+        pass
+
+    def close(self):
+        """Free the memory buffer.
+
+        :rtype: None
+        """
+        pass
+
+    def flush(self):
+        """Flush the internal buffer.
+
+        :rtype: None
+        """
+        pass
+
+    def isatty(self):
+        """Return True if the file is connected to a tty(-like) device,
+        else False.
+
+        :rtype: bool
+        """
+        return False
+
+    def __iter__(self):
+        """Return an iterator over lines.
+
+        :rtype: cStringIO.OutputType[T]
+        """
+        return self
+
+    def next(self):
+        """Returns the next input line.
+
+        :rtype: T
+        """
+        pass
+
+    def read(self, size=-1):
+        """Read at most size bytes or characters from the buffer.
+
+        :type size: numbers.Integral
+        :rtype: T
+        """
+        pass
+
+    def readline(self, size=-1):
+        """Read one entire line from the buffer.
+
+        :type size: numbers.Integral
+        :rtype: T
+        """
+        pass
+
+    def readlines(self, sizehint=-1):
+        """Read until EOF using readline() and return a list containing the
+        lines thus read.
+
+        :type sizehint: numbers.Integral
+        :rtype: list[T]
+        """
+        return []
+
+    def seek(self, offset, whence=0):
+        """Set the buffer's current position, like stdio's fseek().
+
+        :type offset: numbers.Integral
+        :type whence: numbers.Integral
+        :rtype: None
+        """
+        pass
+
+    def tell(self):
+        """Return the buffer's current position, like stdio's ftell().
+
+        :rtype: int
+        """
+        return 0
+
+    def truncate(self, size=-1):
+        """Truncate the buffer's size.
+
+        :type size: numbers.Integral
+        :rtype: None
+        """
+        pass
+
+    def write(self, str):
+        """"Write bytes or a string to the buffer.
+
+        :type str: T
+        :rtype: None
+        """
+        pass
+
+    def writelines(self, sequence):
+        """Write a sequence of bytes or strings to the buffer.
+
+        :type sequence: collections.Iterable[T]
+        :rtype: None
+        """
+        pass

python/helpers/python-skeletons/collections.py

@@ -0,0 +1,26 @@
+"""Skeleton for 'collections' stdlib module."""
+
+
+import sys
+import collections
+
+
+class Iterator(collections.Iterable):
+    def __init__(self):
+        """
+        :rtype: collections.Iterator[T]
+        """
+        pass
+
+    if sys.version_info >= (3, 0):
+        def __next__(self):
+            """
+            :rtype: T
+            """
+            pass
+
+        def next(self):
+            """
+            :rtype: T
+            """
+            pass

python/helpers/python-skeletons/datetime.py

@@ -0,0 +1,625 @@
+"""Skeleton for 'datetime' stdlib module."""
+
+
+import sys
+import datetime as _datetime
+from time import struct_time
+
+
+class timedelta(object):
+    """A timedelta object represents a duration, the difference between two
+    dates or times."""
+
+    def __init__(self, days=0, seconds=0, microseconds=0, milliseconds=0,
+                 minutes=0, hours=0, weeks=0):
+        """Create a timedelta object.
+
+        :type days: numbers.Real
+        :type seconds: numbers.Real
+        :type microseconds: numbers.Real
+        :type milliseconds: numbers.Real
+        :type minutes: numbers.Real
+        :type hours: numbers.Real
+        :type weeks: numbers.Real
+        """
+        self.days = 0
+        self.seconds = 0
+        self.microseconds = 0
+
+    def __add__(self, other):
+        """Add timedelta, date or datetime.
+
+        :type other: T <= _datetime.timedelta | _datetime.date | _datetime.datetime
+        :rtype: T
+        """
+        pass
+
+    def __radd__(self, other):
+        """Add timedelta, date or datetime.
+
+        :type other: T <= _datetime.timedelta | _datetime.date | _datetime.datetime
+        :rtype: T
+        """
+        pass
+
+    def __sub__(self, other):
+        """Subtract timedelta, date or datetime.
+
+        :type other: _datetime.timedelta | _datetime.date | _datetime.datetime
+        :rtype: _datetime.timedelta | _datetime.date | _datetime.datetime
+        """
+        pass
+
+    def __rsub__(self, other):
+        """Subtract timedelta, date or datetime.
+
+        :type other: _datetime.timedelta | _datetime.date | _datetime.datetime
+        :rtype: _datetime.timedelta | _datetime.date | _datetime.datetime
+        """
+        pass
+
+    def __mul__(self, other):
+        """Multiply by an integer.
+
+        :type other: numbers.Integral
+        :rtype: _datetime.timedelta
+        """
+        return _datetime.timedelta()
+
+    def __rmul__(self, other):
+        """Multiply by an integer.
+
+        :type other: numbers.Integral
+        :rtype: _datetime.timedelta
+        """
+        return _datetime.timedelta()
+
+    def __floordiv__(self, other):
+        """Divide by an integer or a timedelta.
+
+        :type other: numbers.Integral | _datetime.timedelta
+        :rtype: _datetime.timedelta | int
+        """
+        pass
+
+    def __div__(self, other):
+        """Divide by an integer.
+
+        :type other: numbers.Integral
+        :rtype: _datetime.timedelta
+        """
+        pass
+
+    def __truediv__(self, other):
+        """Divide by a float or a timedelta.
+
+        :type other: numbers.Real | _datetime.timedelta
+        :rtype: _datetime.timedelta | float
+        """
+        pass
+
+    if sys.version_info >= (2, 7):
+        def total_seconds(self):
+            """Return the total number of seconds contained in the duration.
+
+            :rtype: int
+            """
+            return 0
+
+    min = _datetime.timedelta()
+    max = _datetime.timedelta()
+    resoultion = _datetime.timedelta()
+
+
+class date(object):
+    """An idealized naive date, assuming the current Gregorian calendar always
+    was, and always will be, in effect."""
+
+    def __init__(self, year, month, day):
+        """Create a date object.
+
+        :type year: numbers.Integral
+        :type month: numbers.Integral
+        :type day: numbers.Integral
+        """
+        self.year = year
+        self.month = month
+        self.day = day
+
+    @classmethod
+    def today(cls):
+        """Return the current local date.
+
+        :rtype: _datetime.date
+        """
+        return _datetime.date(0, 0, 0)
+
+    @classmethod
+    def fromtimestamp(cls, timestamp):
+        """Return the local date corresponding to the POSIX timestamp, such as
+        is returned by time.time().
+
+        :type timestamp: numbers.Real
+        :rtype: _datetime.date
+        """
+        return _datetime.date(0, 0, 0)
+
+    @classmethod
+    def fromordinal(cls, ordinal):
+        """Return the date corresponding to the proleptic Gregorian ordinal,
+        where January 1 of year 1 has ordinal 1.
+
+        :type ordinal: numbers.Integral
+        :rtype: _datetime.date
+        """
+        return _datetime.date(0, 0, 0)
+
+    def __add__(self, other):
+        """Add timedelta.
+
+        :type other: _datetime.timedelta
+        :rtype: _datetime.date
+        """
+        return _datetime.date(0, 0, 0)
+
+    def __radd__(self, other):
+        """Add timedelta.
+
+        :type other: _datetime.timedelta
+        :rtype: _datetime.date
+        """
+        return _datetime.date(0, 0, 0)
+
+    def __sub__(self, other):
+        """Subtract date or timedelta.
+
+        :type other: _datetime.date | _datetime.timedelta
+        :rtype: _datetime.timedelta | _datetime.date
+        """
+        pass
+
+    def __rsub__(self, other):
+        """Subtract date.
+
+        :type other: _datetime.date
+        :rtype: _datetime.timedelta
+        """
+        return _datetime.timedelta()
+
+    def replace(self, year=None, month=None, day=None):
+        """Return a date with the same value, except for those parameters given
+        new values by whichever keyword arguments are specified.
+
+        :type year: numbers.Integral
+        :type month: numbers.Integral
+        :type day: numbers.Integral
+        :rtype: _datetime.date
+        """
+        return _datetime.date(0, 0, 0)
+
+    def timetuple(self):
+        """Return a time.struct_time such as returned by time.localtime().
+
+        :rtype: struct_time
+        """
+        return struct_time()
+
+    def toordinal(self):
+        """Return the proleptic Gregorian ordinal of the date, where January 1
+        of year 1 has ordinal 1.
+
+        :rtype: int
+        """
+        return 0
+
+    def weekday(self):
+        """Return the day of the week as an integer, where Monday is 0 and
+        Sunday is 6.
+
+        :rtype: int
+        """
+        return 0
+
+    def isoweekday(self):
+        """Return the day of the week as an integer, where Monday is 1 and
+        Sunday is 7.
+
+        :rtype: int
+        """
+        return 0
+
+    def isocalendar(self):
+        """Return a 3-tuple, (ISO year, ISO week number, ISO weekday).
+
+        :rtype: (int, int, int)
+        """
+        return (0, 0, 0)
+
+    def isoformat(self):
+        """Return a string representing the date in ISO 8601 format,
+        'YYYY-MM-DD'.
+
+        :rtype: string
+        """
+        return str()
+
+    def ctime(self):
+        """Return a string representing the date.
+
+        :rtype: string
+        """
+        return str()
+
+    def strftime(self, format):
+        """Return a string representing the date, controlled by an explicit
+        format string.
+
+        :type format: string
+        :rtype: string
+        """
+        return str()
+
+    min = _datetime.date(0, 0, 0)
+    max = _datetime.date(0, 0, 0)
+    resoultion = _datetime.timedelta()
+
+
+class datetime(object):
+    """A datetime object is a single object containing all the information from
+    a date object and a time object."""
+
+    def __init__(self, year, month, day, hour=0, minute=0, second=0,
+                 microsecond=0, tzinfo=None):
+        """Create a datetime object.
+
+        :type year: numbers.Integral
+        :type month: numbers.Integral
+        :type day: numbers.Integral
+        :type hour: numbers.Integral
+        :type minute: numbers.Integral
+        :type second: numbers.Integral
+        :type microsecond: numbers.Integral
+        :type tzinfo: _datetime.tzinfo | None
+        """
+        self.year = year
+        self.month = month
+        self.day = day
+        self.hour = hour
+        self.minute = minute
+        self.second = second
+        self.microsecond = microsecond
+        self.tzinfo = tzinfo
+
+    @classmethod
+    def today(cls):
+        """Return the current local datetime, with tzinfo None.
+
+        :rtype: _datetime.datetime
+        """
+        return _datetime.datetime(0, 0, 0)
+
+    @classmethod
+    def now(cls, tz=None):
+        """Return the current local date and time.
+
+        :type tz: _datetime.tzinfo | None
+        :rtype: _datetime.datetime
+        """
+        return _datetime.datetime(0, 0, 0)
+
+    @classmethod
+    def utcnow(cls):
+        """Return the current UTC date and time, with tzinfo None.
+
+        :rtype: _datetime.datetime
+        """
+        return _datetime.datetime(0, 0, 0)
+
+    @classmethod
+    def fromtimestamp(cls, timestamp, tz=None):
+        """Return the local date and time corresponding to the POSIX timestamp,
+        such as is returned by time.time().
+
+        :type timestamp: numbers.Real
+        :type tz: _datetime.tzinfo | None
+        :rtype: _datetime.datetime
+        """
+        return _datetime.datetime(0, 0, 0)
+
+    @classmethod
+    def utcfromtimestamp(cls, timestamp):
+        """Return the UTC datetime corresponding to the POSIX timestamp, with
+        tzinfo None.
+
+        :type timestamp: numbers.Real
+        :rtype: _datetime.datetime
+        """
+        return _datetime.datetime(0, 0, 0)
+
+    @classmethod
+    def fromordinal(cls, ordinal):
+        """Return the datetime corresponding to the proleptic Gregorian
+        ordinal.
+
+        :type ordinal: numbers.Integral
+        :rtype: _datetime.datetime
+        """
+        return _datetime.datetime(0, 0, 0)
+
+    @classmethod
+    def combine(cls, date, time):
+        """Return a new datetime object whose date components are equal to the
+        given date object's, and whose time components and tzinfo attributes
+        are equal to the given time object's.
+
+        :type date: _datetime.date
+        :type time: _datetime.time
+        :rtype: _datetime.datetime
+        """
+        return _datetime.datetime(0, 0, 0)
+
+    @classmethod
+    def strptime(cls, date_string, format):
+        """Return a datetime corresponding to date_string, parsed according to
+        format.
+
+        :type date_string: string
+        :type format: string
+        :rtype: _datetime.datetime
+        """
+        return _datetime.datetime(0, 0, 0)
+
+    def __add__(self, other):
+        """Add timedelta.
+
+        :type other: _datetime.timedelta
+        :rtype: _datetime.datetime
+        """
+        return _datetime.datetime(0, 0, 0)
+
+    def __radd__(self, other):
+        """Add timedelta.
+
+        :type other: _datetime.timedelta
+        :rtype: _datetime.datetime
+        """
+        return _datetime.datetime(0, 0, 0)
+
+    def __sub__(self, other):
+        """Subtract timedelta or datetime.
+
+        :type other: _datetime.timedelta | _datetime.datetime
+        :rtype: _datetime.datetime | _datetime.timedelta
+        """
+        pass
+
+    def __rsub__(self, other):
+        """Subtract datetime.
+
+        :type other: _datetime.datetime
+        :rtype: _datetime.timedelta
+        """
+        return _datetime.timedelta()
+
+    def date(self):
+        """Return date object with same year, month and day.
+
+        :rtype: _datetime.date
+        """
+        return _datetime.date(0, 0, 0)
+
+    def time(self):
+        """Return time object with same hour, minute, second and microsecond.
+
+        :rtype: _datetime.time
+        """
+        return _datetime.time()
+
+    def timetz(self):
+        """Return time object with same hour, minute, second, microsecond, and
+        tzinfo attributes.
+
+        :rtype: _datetime.time
+        """
+        return _datetime.time()
+
+    def replace(self, year=None, month=None, day=None, hour=None, minute=None,
+                second=None, microsecond=None, tzinfo=None):
+        """Return a datetime with the same attributes, except for those
+        attributes given new values by whichever keyword arguments are
+        specified.
+
+        :type year: numbers.Integral
+        :type month: numbers.Integral
+        :type day: numbers.Integral
+        :type hour: numbers.Integral
+        :type minute: numbers.Integral
+        :type second: numbers.Integral
+        :type microsecond: numbers.Integral
+        :type tzinfo: _datetime.tzinfo | None
+        :rtype: _datetime.datetime
+        """
+        return _datetime.datetime(0, 0, 0)
+
+    def astimezone(self, tz):
+        """Return a datetime object with new tzinfo attribute tz, adjusting the
+        date and time data so the result is the same UTC time as self, but in
+        tz's local time.
+
+        :type tz: _datetime.tzinfo
+        :rtype: _datetime.datetime
+        """
+        return _datetime.datetime(0, 0, 0)
+
+    def utcoffset(self):
+        """If tzinfo is None, returns None, else returns
+        self.tzinfo.utcoffset(self).
+
+        :rtype: _datetime.timedelta | None
+        """
+        return _datetime.timedelta()
+
+    def dst(self):
+        """If tzinfo is None, returns None, else returns self.tzinfo.dst(self).
+
+        :rtype: _datetime.timedelta | None
+        """
+        return _datetime.timedelta()
+
+    def tzname(self):
+        """If tzinfo is None, returns None, else returns
+        self.tzinfo.tzname(self).
+
+        :rtype: string | None
+        """
+        return str()
+
+    def timetuple(self):
+        """Return a time.struct_time such as returned by time.localtime().
+
+        :rtype: struct_time
+        """
+        return struct_time()
+
+    def utctimetuple(self):
+        """If datetime instance d is naive, this is the same as d.timetuple()
+        except that tm_isdst is forced to 0 regardless of what d.dst() returns.
+
+        :rtype: struct_time
+        """
+        return struct_time()
+
+    def toordinal(self):
+        """Return the proleptic Gregorian ordinal of the date.
+
+        :rtype: int
+        """
+        return 0
+
+    def weekday(self):
+        """Return the day of the week as an integer, where Monday is 0 and
+        Sunday is 6.
+
+        :rtype: int
+        """
+        return 0
+
+    def isoweekday(self):
+        """Return the day of the week as an integer, where Monday is 1 and
+        Sunday is 7.
+
+        :rtype: int
+        """
+        return 0
+
+    def isocalendar(self):
+        """Return a 3-tuple, (ISO year, ISO week number, ISO weekday).
+
+        :rtype: (int, int, int)
+        """
+        return (0, 0, 0)
+
+    def isoformat(self, sep='T'):
+        """Return a string representing the date and time in ISO 8601 format.
+
+        :type sep: string
+        :rtype: string
+        """
+        return str()
+
+    def ctime(self):
+        """Return a string representing the date and time.
+
+        :rtype: string
+        """
+        return str()
+
+    def strftime(self, format):
+        """Return a string representing the date and time, controlled by an
+        explicit format string.
+
+        :type format: string
+        :rtype: string
+        """
+        return str()
+
+    min = _datetime.datetime(0, 0, 0)
+    max = _datetime.datetime(0, 0, 0)
+    resoultion = _datetime.timedelta()
+
+
+class time(object):
+    """A time object represents a (local) time of day, independent of any
+    particular day, and subject to adjustment via a tzinfo object."""
+
+    def __init__(self, hour=0, minute=0, second=0, microsecond=0, tzinfo=None):
+        """Create a time object.
+
+        :type hour: numbers.Integral
+        :type minute: numbers.Integral
+        :type second: numbers.Integral
+        :type microsecond: numbers.Integral
+        :type tzinfo: _datetime.tzinfo | None
+        """
+        self.hour = hour
+        self.minute = minute
+        self.second = second
+        self.microsecond = microsecond
+        sefl.tzinfo = tzinfo
+
+    def replace(self, hour=None, minute=None, second=None, microsecond=None,
+                tzinfo=None):
+        """Return a time with the same value, except for those attributes given
+        new values by whichever keyword arguments are specified.
+
+        :type hour: numbers.Integral
+        :type minute: numbers.Integral
+        :type second: numbers.Integral
+        :type microsecond: numbers.Integral
+        :type tzinfo: _datetime.tzinfo | None
+        :rtype: _datetime.time
+        """
+        return _datetime.time()
+
+    def isoformat(self):
+        """Return a string representing the time in ISO 8601 format.
+
+        :rtype: string
+        """
+        return str()
+
+    def strftime(self, format):
+        """Return a string representing the time, controlled by an explicit
+        format string.
+
+        :type format: string
+        :rtype: string
+        """
+        return str()
+
+    def utcoffset(self):
+        """If tzinfo is None, returns None, else returns
+        self.tzinfo.utcoffset(self).
+
+        :rtype: _datetime.timedelta | None
+        """
+        return _datetime.timedelta()
+
+    def dst(self):
+        """If tzinfo is None, returns None, else returns self.tzinfo.dst(self).
+
+        :rtype: _datetime.timedelta | None
+        """
+        return _datetime.timedelta()
+
+    def tzname(self):
+        """If tzinfo is None, returns None, else returns
+        self.tzinfo.tzname(self).
+
+        :rtype: string | None
+        """
+        return str()
+
+    min = _datetime.time()
+    max = _datetime.time()
+    resoultion = _datetime.timedelta()

python/helpers/python-skeletons/decimal.py

@@ -0,0 +1,82 @@
+"""Skeleton for 'decimal' stdlib module."""
+
+
+import decimal
+
+
+def getcontext():
+    """Returns this thread's context.
+
+    :rtype: decimal.Context
+    """
+    return decimal.Context()
+
+
+def setcontext(context):
+    """Set this thread's context to context.
+
+    :type context: decimal.Context
+    :rtype: None
+    """
+    pass
+
+
+class Decimal(object):
+    """Floating point class for decimal arithmetic."""
+
+    def __add__(self, other, context=None):
+        """Returns self + other.
+
+        :type other: numbers.Number
+        :type context: decimal.Context | None
+        :rtype: decimal.Decimal
+        """
+        return decimal.Decimal()
+
+    def __sub__(self, other, context=None):
+        """Return self - other.
+
+        :type other: numbers.Number
+        :type context: decimal.Context | None
+        :rtype: decimal.Decimal
+        """
+        return decimal.Decimal()
+
+    def __mul__(self, other, context=None):
+        """Return self * other.
+
+        :type other: numbers.Number
+        :type context: decimal.Context | None
+        :rtype: decimal.Decimal
+        """
+        return decimal.Decimal()
+
+
+    def __truediv__(self, other, context=None):
+        """Return self / other.
+
+        :type other: numbers.Number
+        :type context: decimal.Context | None
+        :rtype: decimal.Decimal
+        """
+        return decimal.Decimal()
+
+
+    def __floordiv__(self, other, context=None):
+        """Return self // other.
+
+        :type other: numbers.Number
+        :type context: decimal.Context | None
+        :rtype: decimal.Decimal
+        """
+        return decimal.Decimal()
+
+    def __pow__(self, other, modulo=None, context=None):
+        """Return self ** other [ % modulo].
+
+        :type other: numbers.Number
+        :type modulo: numbers.Number
+        :type context: decimal.Context | None
+        :rtype: decimal.Decimal
+        """
+        return decimal.Decimal()

python/helpers/python-skeletons/functools.py

@@ -0,0 +1,16 @@
+"""Skeleton for 'functools' stdlib module."""
+
+
+def reduce(function, sequence, initial=None):
+    """Apply a function of two arguments cumulatively to the items of a
+    sequence, from left to right, so as to reduce the sequence to a single
+    value.
+
+    :type function: collections.Callable
+    :type sequence: collections.Iterable
+    :type initial: T
+    :rtype: T | unknown
+    """
+    return initial
+
+

python/helpers/python-skeletons/io.py

@@ -0,0 +1,622 @@
+"""Skeleton for 'io' stdlib module."""
+
+
+from __future__ import unicode_literals
+import sys
+import io
+
+
+def open(file, mode='r', buffering=-1, encoding=None, errors=None, newline=None,
+         closefd=True, opener=None):
+    """This is an alias for the builtin open() function.
+
+    :type file: string
+    :type mode: string
+    :type buffering: numbers.Integral
+    :type encoding: string | None
+    :type errors: string | None
+    :type newline: string | None
+    :type closefd: bool
+    :type opener: ((string, int) -> int) | None
+    :rtype: io.FileIO[bytes] | io.TextIOWrapper[unicode]
+    """
+    pass
+
+
+class IOBase(object):
+    """The abstract base class for all I/O classes, acting on streams of
+    bytes.
+
+    :type closed: bool
+    """
+
+    def __init__(self, *args, **kwargs):
+        """Private constructor of IOBase.
+
+        :rtype: io.IOBase[T <= bytes | unicode]
+        """
+        self.closed = False
+
+    def __iter__(self):
+        """Iterate over lines.
+
+        :rtype: collections.Iterator[T]
+        """
+        return []
+
+    def close(self):
+        """Flush and close this stream.
+
+        :rtype: None
+        """
+        pass
+
+    def fileno(self):
+        """Return the underlying file descriptor (an integer) of the stream if
+        it exists.
+
+        :rtype: int
+        """
+        return 0
+
+    def flush(self):
+        """Flush the write buffers of the stream if applicable.
+
+        :rtype: None
+        """
+        pass
+
+    def isatty(self):
+        """Return True if the stream is interactive (i.e., connected to a
+        terminal/tty device).
+
+        :rtype: bool
+        """
+        return False
+
+    def readable(self):
+        """Return True if the stream can be read from.
+
+        :rtype: bool
+        """
+        return False
+
+    def readline(self, limit=-1):
+        """Read and return one line from the stream.
+
+        :type limit: numbers.Integral
+        :rtype: T
+        """
+        pass
+
+    def readlines(self, hint=-1):
+        """Read and return a list of lines from the stream.
+
+        :type hint: numbers.Integral
+        :rtype: list[T]
+        """
+        return []
+
+    def seek(self, offset, whence=io.SEEK_SET):
+        """Change the stream position to the given byte offset.
+
+        :type offset: numbers.Integral
+        :type whence: numbers.Integral
+        :rtype: None
+        """
+        pass
+
+    def seekable(self):
+        """Return True if the stream supports random access.
+
+        :rtype: bool
+        """
+        return False
+
+    def tell(self):
+        """Return the current stream position.
+
+        :rtype: int
+        """
+        return 0
+
+    def truncate(self, size=None):
+        """Resize the stream to the given size in bytes (or the current
+        position if size is not specified).
+
+        :type size: numbers.Integral | None
+        :rtype: None
+        """
+        pass
+
+    def writable(self):
+        """Return True if the stream supports writing.
+
+        :rtype: bool
+        """
+        return False
+
+    def writelines(self, lines):
+        """Write a list of lines to the stream.
+
+        :type lines: collections.Iterable[T]
+        :rtype: None
+        """
+        pass
+
+
+class RawIOBase(io.IOBase):
+    """Base class for raw binary I/O."""
+
+    def __init__(self, *args, **kwargs):
+        """Private constructor of RawIOBase.
+
+        :rtype: io.RawIOBase[bytes]
+        """
+        pass
+
+    def read(self, n=1):
+        """Read up to n bytes from the object and return them.
+
+        :type n: numbers.Integral
+        :rtype: bytes
+        """
+        return b''
+
+    def readall(self):
+        """Read and return all the bytes from the stream until EOF, using
+        multiple calls to the stream if necessary.
+
+        :rtype: bytes
+        """
+        return b''
+
+    def readinto(self, b):
+        """Read up to len(b) bytes into bytearray b and return the number of
+        bytes read.
+
+        :type b: bytearray
+        :rtype: int
+        """
+        return 0
+
+    def write(self, b):
+        """Write the given bytes or bytearray object, b, to the underlying raw
+        stream and return the number of bytes written.
+
+        :type b: bytes | bytearray
+        :rtype: int
+        """
+        return 0
+
+
+class BufferedIOBase(io.IOBase):
+    """Base class for binary streams that support some kind of buffering."""
+
+    def __init__(self, *args, **kwargs):
+        """Private constructor of BufferedIOBase.
+
+        :rtype: io.BufferedIOBase[bytes]
+        """
+        pass
+
+    if sys.version_info >= (2, 7):
+        def detach(self):
+            """Separate the underlying raw stream from the buffer and return
+            it.
+
+            :rtype: None
+            """
+            pass
+
+    def read1(self, n=-1):
+        """Read and return up to n bytes, with at most one call to the
+        underlying raw stream's read() method.
+
+        :type n: numbers.Integral
+        :rtype: bytes
+        """
+        return b''
+
+
+class FileIO(io.RawIOBase):
+    """FileIO represents an OS-level file containing bytes data.
+
+    :type name: string
+    :type mode: string
+    :type closefd: bool
+    :type closed: bool
+    """
+
+    def __init__(self, name, mode='r', closefd=True):
+        """Create a FileIO object.
+
+        :type name: string
+        :type mode: string
+        :type closefd: bool
+        :rtype: io.FileIO[bytes]
+        """
+        self.name = name
+        self.mode = mode
+        self.closefd = closefd
+        self.closed = False
+        pass
+
+    def __iter__(self):
+        """Iterate over lines.
+
+        :rtype: collections.Iterator[bytes]
+        """
+        return []
+
+    def close(self):
+        """Flush and close this stream.
+
+        :rtype: None
+        """
+        pass
+
+    def fileno(self):
+        """Return the underlying file descriptor (an integer) of the stream if
+        it exists.
+
+        :rtype: int
+        """
+        return 0
+
+    def flush(self):
+        """Flush the write buffers of the stream if applicable.
+
+        :rtype: None
+        """
+        pass
+
+    def isatty(self):
+        """Return True if the stream is interactive (i.e., connected to a
+        terminal/tty device).
+
+        :rtype: bool
+        """
+        return False
+
+    def readable(self):
+        """Return True if the stream can be read from.
+
+        :rtype: bool
+        """
+        return False
+
+    def readline(self, limit=-1):
+        """Read and return one line from the stream.
+
+        :type limit: numbers.Integral
+        :rtype: bytes
+        """
+        return b''
+
+    def readlines(self, hint=-1):
+        """Read and return a list of lines from the stream.
+
+        :type hint: numbers.Integral
+        :rtype: list[bytes]
+        """
+        return []
+
+    def seek(self, offset, whence=io.SEEK_SET):
+        """Change the stream position to the given byte offset.
+
+        :type offset: numbers.Integral
+        :type whence: numbers.Integral
+        :rtype: None
+        """
+        pass
+
+    def seekable(self):
+        """Return True if the stream supports random access.
+
+        :rtype: bool
+        """
+        return False
+
+    def tell(self):
+        """Return the current stream position.
+
+        :rtype: int
+        """
+        return 0
+
+    def truncate(self, size=None):
+        """Resize the stream to the given size in bytes (or the current
+        position if size is not specified).
+
+        :type size: numbers.Integral | None
+        :rtype: None
+        """
+        pass
+
+    def writable(self):
+        """Return True if the stream supports writing.
+
+        :rtype: bool
+        """
+        return False
+
+    def writelines(self, lines):
+        """Write a list of lines to the stream.
+
+        :type lines: collections.Iterable[bytes]
+        :rtype: None
+        """
+        pass
+
+    def read(self, n=1):
+        """Read up to n bytes from the object and return them.
+
+        :type n: numbers.Integral
+        :rtype: bytes
+        """
+        return b''
+
+    def readall(self):
+        """Read and return all the bytes from the stream until EOF, using
+        multiple calls to the stream if necessary.
+
+        :rtype: bytes
+        """
+        return b''
+
+    def readinto(self, b):
+        """Read up to len(b) bytes into bytearray b and return the number of
+        bytes read.
+
+        :type b: bytearray
+        :rtype: int
+        """
+        return 0
+
+    def write(self, b):
+        """Write the given bytes or bytearray object, b, to the underlying raw
+        stream and return the number of bytes written.
+
+        :type b: bytes | bytearray
+        :rtype: int
+        """
+        return 0
+
+
+class BytesIO(io.BufferedIOBase):
+    """A stream implementation using an in-memory bytes buffer."""
+
+    def __init__(self, initial_bytes=None):
+        """Create a BytesIO object.
+
+        :rtype: io.BytesIO[bytes]
+        """
+        pass
+
+    if sys.version_info >= (3, 2):
+        def getbuffer(self):
+            """Return a readable and writable view over the contents of the
+            buffer without copying them.
+
+            :rtype: bytearray
+            """
+            return bytearray()
+
+    def getvalue(self):
+        """Return bytes containing the entire contents of the buffer.
+
+        :rtype: bytes
+        """
+        return b''
+
+
+class TextIOBase(io.IOBase):
+    """Base class for text streams.
+
+    :type encoding: string
+    :type errors: string
+    :type newlines: string | tuple | None
+    :type buffer: BufferedIOBase
+    """
+
+    def __init__(self, *args, **kwargs):
+        """Private constructor of TextIOBase.
+
+        :rtype: TextIOBase[unicode]
+        """
+        self.encoding = str()
+        self.errors = str()
+        self.newlines = None
+        self.buffer = BufferedIOBase()
+
+    if sys.version_info >= (2, 7):
+        def detach(self):
+            """Separate the underlying raw stream from the buffer and return
+            it.
+
+            :rtype: None
+            """
+            pass
+
+    def read(self, n=None):
+        """Read and return at most n characters from the stream as a single
+        unicode.
+
+        :type n: numbers.Integral | None
+        :rtype: unicode
+        """
+        return ''
+
+    def write(self, s):
+        """Write the unicode string s to the stream and return the number of
+        characters written.
+
+        :type b: unicode
+        :rtype: int
+        """
+        return 0
+
+
+class TextIOWrapper(io.TextIOBase):
+    """A buffered text stream over a BufferedIOBase binary stream.
+
+    :type buffer: io.BufferedIOBase
+    :type encoding: string
+    :type errors: string
+    :type newlines: string
+    :type line_buffering: bool
+    :type name: string
+    """
+
+    def __init__(self, buffer, encoding=None, errors=None, newline=None,
+                 line_buffering=False):
+        """Creat a TextIOWrapper object.
+
+        :type buffer: io.BufferedIOBase
+        :type encoding: string | None
+        :type errors: string | None
+        :type newline: string | None
+        :type line_buffering: bool
+        :rtype: io.TextIOWrapper[unicode]
+        """
+        self.name = ''
+        self.buffer = buffer
+        self.encoding = encoding
+        self.errors = errors
+        self.newlines = newline
+        self.line_buffering = line_buffering
+
+    def __iter__(self):
+        """Iterate over lines.
+
+        :rtype: collections.Iterator[unicode]
+        """
+        return []
+
+    def close(self):
+        """Flush and close this stream.
+
+        :rtype: None
+        """
+        pass
+
+    def fileno(self):
+        """Return the underlying file descriptor (an integer) of the stream if
+        it exists.
+
+        :rtype: int
+        """
+        return 0
+
+    def flush(self):
+        """Flush the write buffers of the stream if applicable.
+
+        :rtype: None
+        """
+        pass
+
+    def isatty(self):
+        """Return True if the stream is interactive (i.e., connected to a
+        terminal/tty device).
+
+        :rtype: bool
+        """
+        return False
+
+    def readable(self):
+        """Return True if the stream can be read from.
+
+        :rtype: bool
+        """
+        return False
+
+    def readline(self, limit=-1):
+        """Read and return one line from the stream.
+
+        :type limit: numbers.Integral
+        :rtype: unicode
+        """
+        pass
+
+    def readlines(self, hint=-1):
+        """Read and return a list of lines from the stream.
+
+        :type hint: numbers.Integral
+        :rtype: list[unicode]
+        """
+        return []
+
+    def seek(self, offset, whence=io.SEEK_SET):
+        """Change the stream position to the given byte offset.
+
+        :type offset: numbers.Integral
+        :type whence: numbers.Integral
+        :rtype: None
+        """
+        pass
+
+    def seekable(self):
+        """Return True if the stream supports random access.
+
+        :rtype: bool
+        """
+        return False
+
+    def tell(self):
+        """Return the current stream position.
+
+        :rtype: int
+        """
+        return 0
+
+    def truncate(self, size=None):
+        """Resize the stream to the given size in bytes (or the current
+        position if size is not specified).
+
+        :type size: numbers.Integral | None
+        :rtype: None
+        """
+        pass
+
+    def writable(self):
+        """Return True if the stream supports writing.
+
+        :rtype: bool
+        """
+        return False
+
+    def writelines(self, lines):
+        """Write a list of lines to the stream.
+
+        :type lines: collections.Iterable[unicode]
+        :rtype: None
+        """
+        pass
+
+    if sys.version_info >= (2, 7):
+        def detach(self):
+            """Separate the underlying raw stream from the buffer and return
+            it.
+
+            :rtype: None
+            """
+            pass
+
+    def read(self, n=None):
+        """Read and return at most n characters from the stream as a single
+        unicode.
+
+        :type n: numbers.Integral | None
+        :rtype: unicode
+        """
+        return ''
+
+    def write(self, s):
+        """Write the unicode string s to the stream and return the number of
+        characters written.
+
+        :type b: unicode
+        :rtype: int
+        """
+        return 0

python/helpers/python-skeletons/lettuce/__init__.py

@@ -0,0 +1,2 @@
+# coding=utf-8
+__author__ = 'Ilya.Kazakevich'

python/helpers/python-skeletons/lettuce/terrain.py

@@ -0,0 +1,68 @@
+# coding=utf-8
+"""
+Lettuce terrain hooks: http://lettuce.it/reference/terrain.html
+"""
+__author__ = 'Ilya.Kazakevich'
+
+
+class __When(object):
+    @staticmethod
+    def all(function):
+        """
+        Runs before/after all features, scenarios and steps
+        """
+        pass
+
+    @staticmethod
+    def each_step(function):
+        """
+        Runs before/after each step
+        """
+        pass
+
+    @staticmethod
+    def each_scenario(function):
+        """
+        Runs before/after each scenario
+        """
+        pass
+
+    @staticmethod
+    def each_background(function):
+        """
+        Runs before/after each background
+        """
+        pass
+
+    @staticmethod
+    def each_feature(function):
+        """
+        Runs before/after each feature
+        """
+        pass
+
+    @staticmethod
+    def each_app(function):
+        """
+        Runs before/after each Django app.
+        """
+        pass
+
+    @staticmethod
+    def runserver(function):
+        """
+        Runs before/after lettuce starts up the built-in http server.
+        """
+        pass
+
+    @staticmethod
+    def handle_request(function):
+        """
+        Runs before/after lettuce’s built-in HTTP server responds to a request.
+        """
+        pass
+
+
+before = __When()
+after = __When()
+

python/helpers/python-skeletons/math.py

@@ -0,0 +1,381 @@
+"""Skeleton for 'math' stdlib module."""
+
+
+import sys
+import math
+
+
+def ceil(x):
+    """Return the ceiling of x as a float, the smallest integer value greater
+    than or equal to x.
+
+    :type x: numbers.Real
+    :rtype: float
+    """
+    return 0.0
+
+
+if sys.version_info >= (2, 6):
+    def copysign(x, y):
+        """Return x with the sign of y. On a platform that supports signed
+        zeros, copysign(1.0, -0.0) returns -1.0.
+
+        :type x: numbers.Real
+        :type y: numbers.Real
+        :rtype: float
+        """
+        return 0.0
+
+
+def fabs(x):
+    """Return the absolute value of x.
+
+    :type x: numbers.Real
+    :rtype: float
+    """
+    return 0.0
+
+
+if sys.version_info >= (2, 6):
+    def factorial(x):
+        """Return x factorial.
+
+        :type x: numbers.Integral
+        :rtype: int
+        """
+        return 0
+
+
+def floor(x):
+    """Return the floor of x as a float, the largest integer value less than or
+    equal to x.
+
+    :type x: numbers.Real
+    :rtype: float
+    """
+    return 0.0
+
+
+def fmod(x, y):
+    """Return fmod(x, y), as defined by the platform C library.
+
+    :type x: numbers.Real
+    :type y: numbers.Real
+    :rtype: float
+    """
+    return 0.0
+
+
+def frexp(x):
+    """Return the mantissa and exponent of x as the pair (m, e).
+
+    :type x: numbers.Real
+    :rtype: (float, int)
+    """
+    return 0.0, 0
+
+
+if sys.version_info >= (2, 6):
+    def fsum(iterable):
+        """Return an accurate floating point sum of values in the iterable.
+
+        :type iterable: collections.Iterable[numbers.Real]
+        :rtype: float
+        """
+        return 0.0
+
+    def isinf(x):
+        """Check if the float x is positive or negative infinity.
+
+        :type x: numbers.Real
+        :rtype: bool
+        """
+        return False
+
+    def isnan(x):
+        """Check if the float x is a NaN (not a number).
+
+        :type x: numbers.Real
+        :rtype: bool
+        """
+        return False
+
+
+def ldexp(x, i):
+    """Return x * (2**i).
+
+    :type x: numbers.Real
+    :type i: numbers.Integral
+    :rtype: float
+    """
+    return 0.0
+
+
+def modf(x):
+    """Return the fractional and integer parts of x.
+
+    :type x: numbers.Real
+    :rtype: (float, float)
+    """
+    return 0.0, 0.0
+
+
+if sys.version_info >= (2, 6):
+    def trunc(x):
+        """Return the Real value x truncated to an Integral (usually a long
+        integer).
+
+        :type x: numbers.Real
+        :rtype: int
+        """
+        return 0
+
+
+def exp(x):
+    """Return e**x.
+
+    :type x: numbers.Real
+    :rtype: float
+    """
+    return 0.0
+
+
+if sys.version_info >= (2, 7):
+    def expm1(x):
+        """Return e**x - 1.
+
+        :type x: numbers.Real
+        :rtype: float
+        """
+        return 0.0
+
+
+def log(x, base=math.e):
+    """With one argument, return the natural logarithm of x (to base e).
+
+    With two arguments, return the logarithm of x to the given base, calculated
+    as log(x)/log(base).
+
+    :type x: numbers.Real
+    :type base: numbers.Real
+    :rtype: float
+    """
+    return 0.0
+
+
+if sys.version_info >= (2, 6):
+    def log1p(x):
+        """Return the natural logarithm of 1+x (base e).
+
+        :type x: numbers.Real
+        :rtype: float
+        """
+        return 0.0
+
+
+def log10(x):
+    """Return the base-10 logarithm of x.
+
+    :type x: numbers.Real
+    :rtype: float
+    """
+    return 0.0
+
+
+def pow(x, y):
+    """Return x raised to the power y.
+
+    :type x: numbers.Real
+    :type y: numbers.Real
+    :rtype: float
+    """
+    return 0.0
+
+
+def sqrt(x):
+    """Return the square root of x.
+
+    :type x: numbers.Real
+    :rtype: float
+    """
+    return 0.0
+
+
+def acos(x):
+    """Return the arc cosine of x, in radians.
+
+    :type x: numbers.Real
+    :rtype: float
+    """
+    return 0.0
+
+
+def asin(x):
+    """Return the arc sine of x, in radians.
+
+    :type x: numbers.Real
+    :rtype: float
+    """
+    return 0.0
+
+
+def atan(x):
+    """Return the arc tangent of x, in radians.
+
+    :type x: numbers.Real
+    :rtype: float
+    """
+    return 0.0
+
+
+def atan2(y, x):
+    """Return atan(y / x), in radians.
+
+    :type y: numbers.Real
+    :type x: numbers.Real
+    :rtype: float
+    """
+    return 0.0
+
+
+def cos(x):
+    """Return the cosine of x radians.
+
+    :type x: numbers.Real
+    :rtype: float
+    """
+    return 0.0
+
+
+def hypot(x, y):
+    """Return the Euclidean norm, sqrt(x*x + y*y).
+
+    :type x: numbers.Real
+    :type y: numbers.Real
+    :rtype: float
+    """
+    return 0.0
+
+
+def sin(x):
+    """Return the sine of x radians.
+
+    :type x: numbers.Real
+    :rtype: float
+    """
+    return 0.0
+
+
+def tan(x):
+    """Return the tangent of x radians.
+
+    :type x: numbers.Real
+    :rtype: float
+    """
+    return 0.0
+
+
+def degrees(x):
+    """Converts angle x from radians to degrees.
+
+    :type x: numbers.Real
+    :rtype: float
+    """
+    return 0.0
+
+
+def radians(x):
+    """Converts angle x from degrees to radians.
+
+    :type x: numbers.Real
+    :rtype: float
+    """
+    return 0.0
+
+
+if sys.version_info >= (2, 6):
+    def acosh(x):
+        """Return the inverse hyperbolic cosine of x.
+
+        :type x: numbers.Real
+        :rtype: float
+        """
+        return 0.0
+
+    def asinh(x):
+        """Return the inverse hyperbolic sine of x.
+
+        :type x: numbers.Real
+        :rtype: float
+        """
+        return 0.0
+
+    def atanh(x):
+        """Return the inverse hyperbolic tangent of x.
+
+        :type x: numbers.Real
+        :rtype: float
+        """
+        return 0.0
+
+
+def cosh(x):
+    """Return the hyperbolic cosine of x.
+
+    :type x: numbers.Real
+    :rtype: float
+    """
+    return 0.0
+
+
+def sinh(x):
+    """Return the hyperbolic sine of x.
+
+    :type x: numbers.Real
+    :rtype: float
+    """
+    return 0.0
+
+
+def tanh(x):
+    """Return the hyperbolic tangent of x.
+
+    :type x: numbers.Real
+    :rtype: float
+    """
+    return 0.0
+
+
+if sys.version_info >= (2, 7):
+    def erf(x):
+        """Return the error function at x.
+
+        :type x: numbers.Real
+        :rtype: float
+        """
+        return 0.0
+
+    def erfc(x):
+        """Return the complementary error function at x.
+
+        :type x: numbers.Real
+        :rtype: float
+        """
+        return 0.0
+
+    def gamma(x):
+        """Return the Gamma function at x.
+
+        :type x: numbers.Real
+        :rtype: float
+        """
+        return 0.0
+
+    def lgamma(x):
+        """Return the natural logarithm of the absolute value of the Gamma
+        function at x.
+
+        :type x: numbers.Real
+        :rtype: float
+        """
+        return 0.0

python/helpers/python-skeletons/multiprocessing/__init__.py

@@ -0,0 +1,280 @@
+"""Skeleton for 'multiprocessing' stdlib module."""
+
+
+from multiprocessing.pool import Pool
+
+
+class Process(object):
+    def __init__(self, group=None, target=None, name=None, args=(), kwargs={}):
+        self.name = ''
+        self.daemon = False
+        self.authkey = None
+        self.exitcode = None
+        self.ident = 0
+        self.pid = 0
+        self.sentinel = None
+
+    def run(self):
+        pass
+
+    def start(self):
+        pass
+
+    def terminate(self):
+        pass
+
+    def join(self, timeout=None):
+        pass
+
+    def is_alive(self):
+        return False
+
+
+class ProcessError(Exception):
+    pass
+
+
+class BufferTooShort(ProcessError):
+    pass
+
+
+class AuthenticationError(ProcessError):
+    pass
+
+
+class TimeoutError(ProcessError):
+    pass
+
+
+class Connection(object):
+    def send(self, obj):
+        pass
+
+    def recv(self):
+        pass
+
+    def fileno(self):
+        return 0
+
+    def close(self):
+        pass
+
+    def poll(self, timeout=None):
+        pass
+
+    def send_bytes(self, buffer, offset=-1, size=-1):
+        pass
+
+    def recv_bytes(self, maxlength=-1):
+        pass
+
+    def recv_bytes_into(self, buffer, offset=-1):
+        pass
+
+    def __enter__(self):
+        pass
+
+    def __exit__(self, exc_type, exc_val, exc_tb):
+        pass
+
+
+def Pipe(duplex=True):
+    return Connection(), Connection()
+
+
+class Queue(object):
+    def __init__(self, maxsize=-1):
+        self._maxsize = maxsize
+
+    def qsize(self):
+        return 0
+
+    def empty(self):
+        return False
+
+    def full(self):
+        return False
+
+    def put(self, obj, block=True, timeout=None):
+        pass
+
+    def put_nowait(self, obj):
+        pass
+
+    def get(self, block=True, timeout=None):
+        pass
+
+    def get_nowait(self):
+        pass
+
+    def close(self):
+        pass
+
+    def join_thread(self):
+        pass
+
+    def cancel_join_thread(self):
+        pass
+
+
+class SimpleQueue(object):
+    def empty(self):
+        return False
+
+    def get(self):
+        pass
+
+    def put(self, item):
+        pass
+
+
+class JoinableQueue(multiprocessing.Queue):
+    def task_done(self):
+        pass
+
+    def join(self):
+        pass
+
+
+def active_childern():
+    """
+    :rtype: list[multiprocessing.Process]
+    """
+    return []
+
+
+def cpu_count():
+    return 0
+
+
+def current_process():
+    """
+    :rtype: multiprocessing.Process
+    """
+    return Process()
+
+
+def freeze_support():
+    pass
+
+
+def get_all_start_methods():
+    return []
+
+
+def get_context(method=None):
+    pass
+
+
+def get_start_method(allow_none=False):
+    pass
+
+
+def set_executable(path):
+    pass
+
+
+def set_start_method(method):
+    pass
+
+
+class Barrier(object):
+    def __init__(self, parties, action=None, timeout=None):
+        self.parties = parties
+        self.n_waiting = 0
+        self.broken = False
+
+    def wait(self, timeout=None):
+        pass
+
+    def reset(self):
+        pass
+
+    def abort(self):
+        pass
+
+
+class Semaphore(object):
+    def __init__(self, value=1):
+        pass
+
+    def acquire(self, blocking=True, timeout=None):
+        pass
+
+    def release(self):
+        pass
+
+
+class BoundedSemaphore(multiprocessing.Semaphore):
+    pass
+
+
+class Condition(object):
+    def __init__(self, lock=None):
+        pass
+
+    def acquire(self, *args):
+        pass
+
+    def release(self):
+        pass
+
+    def wait(self, timeout=None):
+        pass
+
+    def wait_for(self, predicate, timeout=None):
+        pass
+
+    def notify(self, n=1):
+        pass
+
+    def notify_all(self):
+        pass
+
+
+class Event(object):
+    def is_set(self):
+        return False
+
+    def set(self):
+        pass
+
+    def clear(self):
+        pass
+
+    def wait(self, timeout=None):
+        pass
+
+
+class Lock(object):
+    def acquire(self, blocking=True, timeout=-1):
+        pass
+
+    def release(self):
+        pass
+
+
+class RLock(object):
+    def acquire(self, blocking=True, timeout=-1):
+        pass
+
+    def release(self):
+        pass
+
+    def __enter__(self):
+        pass
+
+    def __exit__(self, exc_type, exc_val, exc_tb):
+        pass
+
+
+def Value(typecode_or_type, *args, **kwargs):
+    pass
+
+
+def Array(typecode_or_type, size_or_initializer, lock=True):
+    pass
+
+
+def Manager():
+    return multiprocessing.SyncManager()

python/helpers/python-skeletons/multiprocessing/managers.py

@@ -0,0 +1,76 @@
+"""Skeleton for 'multiprocessing.managers' stdlib module."""
+
+
+import threading
+import queue
+import multiprocessing
+import multiprocessing.managers
+
+
+class BaseManager(object):
+    def __init__(self, address=None, authkey=None):
+        self.address = address
+
+    def start(self, initializer=None, initargs=None):
+        pass
+
+    def get_server(self):
+        pass
+
+    def connect(self):
+        pass
+
+    def shutdown(self):
+        pass
+
+    @classmethod
+    def register(cls, typeid, callable=None, proxytype=None, exposed=None,
+                 method_to_typeid=None, create_method=None):
+        pass
+
+    def __enter__(self):
+        pass
+
+    def __exit__(self, exc_type, exc_val, exc_tb):
+        pass
+
+
+class SyncManager(multiprocessing.managers.BaseManager):
+    def Barrier(self, parties, action=None, timeout=None):
+        return threading.Barrier(parties, action, timeout)
+
+    def BoundedSemaphore(self, value=None):
+        return threading.BoundedSemaphore(value)
+
+    def Condition(self, lock=None):
+        return threading.Condition(lock)
+
+    def Event(self):
+        return threading.Event()
+
+    def Lock(self):
+        return threading.Lock()
+
+    def Namespace(self):
+        pass
+
+    def Queue(self, maxsize=None):
+        return queue.Queue()
+
+    def RLock(self):
+        return threading.RLock()
+
+    def Semaphore(self, value=None):
+        return threading.Semaphore(value)
+
+    def Array(self, typecode, sequence):
+        pass
+
+    def Value(self, typecode, value):
+        pass
+
+    def dict(self, mapping_or_sequence):
+        pass
+
+    def list(self, sequence):
+        pass

python/helpers/python-skeletons/nose/__init__.py

@@ -0,0 +1,5 @@
+"""Skeleton for 'nose' module.
+
+Project: nose 1.3 <https://nose.readthedocs.org/>
+Skeleton by: Andrey Vlasovskikh <andrey.vlasovskikh@jetbrains.com>
+"""

python/helpers/python-skeletons/nose/tools/__init__.py

@@ -0,0 +1,181 @@
+"""Skeleton for 'nose.tools' module.
+
+Project: nose 1.3 <https://nose.readthedocs.org/>
+Skeleton by: Andrey Vlasovskikh <andrey.vlasovskikh@jetbrains.com>
+"""
+
+
+import sys
+
+
+def assert_equal(first, second, msg=None):
+    """Fail if the two objects are unequal as determined by the '==' operator.
+    """
+    pass
+
+
+def assert_not_equal(first, second, msg=None):
+    """Fail if the two objects are equal as determined by the '==' operator.
+    """
+    pass
+
+
+def assert_true(expr, msg=None):
+    """Check that the expression is true."""
+    pass
+
+
+def assert_false(expr, msg=None):
+    """Check that the expression is false."""
+    pass
+
+
+if sys.version_info >= (2, 7):
+    def assert_is(expr1, expr2, msg=None):
+        """Just like assert_true(a is b), but with a nicer default message."""
+        pass
+
+    def assert_is_not(expr1, expr2, msg=None):
+        """Just like assert_true(a is not b), but with a nicer default message.
+        """
+        pass
+
+    def assert_is_none(obj, msg=None):
+        """Same as assert_true(obj is None), with a nicer default message.
+        """
+        pass
+
+    def assert_is_not_none(obj, msg=None):
+        """Included for symmetry with assert_is_none."""
+        pass
+
+    def assert_in(member, container, msg=None):
+        """Just like assert_true(a in b), but with a nicer default message."""
+        pass
+
+    def assert_not_in(member, container, msg=None):
+        """Just like assert_true(a not in b), but with a nicer default message.
+        """
+        pass
+
+    def assert_is_instance(obj, cls, msg=None):
+        """Same as assert_true(isinstance(obj, cls)), with a nicer default
+        message.
+        """
+        pass
+
+    def assert_not_is_instance(obj, cls, msg=None):
+        """Included for symmetry with assert_is_instance."""
+        pass
+
+
+def assert_raises(excClass, callableObj=None, *args, **kwargs):
+    """Fail unless an exception of class excClass is thrown by callableObj when
+    invoked with arguments args and keyword arguments kwargs.
+
+    If called with callableObj omitted or None, will return a
+    context object used like this::
+
+         with assert_raises(SomeException):
+             do_something()
+
+    :rtype: unittest.case._AssertRaisesContext | None
+    """
+    pass
+
+
+if sys.version_info >= (2, 7):
+    def assert_raises_regexp(expected_exception, expected_regexp,
+                             callable_obj=None, *args, **kwargs):
+        """Asserts that the message in a raised exception matches a regexp.
+
+        :rtype: unittest.case._AssertRaisesContext | None
+        """
+        pass
+
+
+def assert_almost_equal(first, second, places=None, msg=None, delta=None):
+    """Fail if the two objects are unequal as determined by their difference
+    rounded to the given number of decimal places (default 7) and comparing to
+    zero, or by comparing that the between the two objects is more than the
+    given delta.
+    """
+    pass
+
+
+def assert_not_almost_equal(first, second, places=None, msg=None, delta=None):
+    """Fail if the two objects are equal as determined by their difference
+    rounded to the given number of decimal places (default 7) and comparing to
+    zero, or by comparing that the between the two objects is less than the
+    given delta.
+    """
+    pass
+
+
+if sys.version_info >= (2, 7):
+    def assert_greater(a, b, msg=None):
+        """Just like assert_true(a > b), but with a nicer default message."""
+        pass
+
+    def assert_greater_equal(a, b, msg=None):
+        """Just like assert_true(a >= b), but with a nicer default message."""
+        pass
+
+    def assert_less(a, b, msg=None):
+        """Just like assert_true(a < b), but with a nicer default message."""
+        pass
+
+    def assert_less_equal(a, b, msg=None):
+        """Just like self.assertTrue(a <= b), but with a nicer default
+        message.
+        """
+        pass
+
+    def assert_regexp_matches(text, expected_regexp, msg=None):
+        """Fail the test unless the text matches the regular expression."""
+        pass
+
+    def assert_not_regexp_matches(text, unexpected_regexp, msg=None):
+        """Fail the test if the text matches the regular expression."""
+        pass
+
+    def assert_items_equal(expected_seq, actual_seq, msg=None):
+        """An unordered sequence specific comparison. It asserts that
+        actual_seq and expected_seq have the same element counts.
+        """
+        pass
+
+    def assert_dict_contains_subset(expected, actual, msg=None):
+        """Checks whether actual is a superset of expected."""
+        pass
+
+    def assert_multi_line_equal(first, second, msg=None):
+        """Assert that two multi-line strings are equal."""
+        pass
+
+    def assert_sequence_equal(seq1, seq2, msg=None, seq_type=None):
+        """An equality assertion for ordered sequences (like lists and tuples).
+        """
+        pass
+
+    def assert_list_equal(list1, list2, msg=None):
+        """A list-specific equality assertion."""
+        pass
+
+    def assert_tuple_equal(tuple1, tuple2, msg=None):
+        """A tuple-specific equality assertion."""
+        pass
+
+    def assert_set_equal(set1, set2, msg=None):
+        """A set-specific equality assertion."""
+        pass
+
+    def assert_dict_equal(d1, d2, msg=None):
+        """A dict-specific equality assertion."""
+        pass
+
+
+assert_equals = assert_equal
+assert_not_equals = assert_not_equal
+assert_almost_equals = assert_almost_equal
+assert_not_almost_equals = assert_not_almost_equal

python/helpers/python-skeletons/numpy/__init__.py

@@ -0,0 +1,10 @@
+"""Skeleton for 'numpy' module.
+
+Project: NumPy 1.8.0 <http://www.numpy.org//>
+"""
+
+from . import core
+from .core import *
+
+__all__ = []
+__all__.extend(core.__all__)

python/helpers/python-skeletons/numpy/core/__init__.py

@@ -0,0 +1,3 @@
+from . import multiarray
+
+__all__ = []

python/helpers/python-skeletons/numpy/core/multiarray.py

@@ -0,0 +1,202 @@
+class ndarray(object):
+    """
+    ndarray(shape, dtype=float, buffer=None, offset=0,
+                strides=None, order=None)
+
+        An array object represents a multidimensional, homogeneous array
+        of fixed-size items.  An associated data-type object describes the
+        format of each element in the array (its byte-order, how many bytes it
+        occupies in memory, whether it is an integer, a floating point number,
+        or something else, etc.)
+
+        Arrays should be constructed using `array`, `zeros` or `empty` (refer
+        to the See Also section below).  The parameters given here refer to
+        a low-level method (`ndarray(...)`) for instantiating an array.
+
+        For more information, refer to the `numpy` module and examine the
+        the methods and attributes of an array.
+
+        Parameters
+        ----------
+        (for the __new__ method; see Notes below)
+
+        shape : tuple of ints
+            Shape of created array.
+        dtype : data-type, optional
+            Any object that can be interpreted as a numpy data type.
+        buffer : object exposing buffer interface, optional
+            Used to fill the array with data.
+        offset : int, optional
+            Offset of array data in buffer.
+        strides : tuple of ints, optional
+            Strides of data in memory.
+        order : {'C', 'F'}, optional
+            Row-major or column-major order.
+
+        Attributes
+        ----------
+        T : ndarray
+            Transpose of the array.
+        data : buffer
+            The array's elements, in memory.
+        dtype : dtype object
+            Describes the format of the elements in the array.
+        flags : dict
+            Dictionary containing information related to memory use, e.g.,
+            'C_CONTIGUOUS', 'OWNDATA', 'WRITEABLE', etc.
+        flat : numpy.flatiter object
+            Flattened version of the array as an iterator.  The iterator
+            allows assignments, e.g., ``x.flat = 3`` (See `ndarray.flat` for
+            assignment examples; TODO).
+        imag : ndarray
+            Imaginary part of the array.
+        real : ndarray
+            Real part of the array.
+        size : int
+            Number of elements in the array.
+        itemsize : int
+            The memory use of each array element in bytes.
+        nbytes : int
+            The total number of bytes required to store the array data,
+            i.e., ``itemsize * size``.
+        ndim : int
+            The array's number of dimensions.
+        shape : tuple of ints
+            Shape of the array.
+        strides : tuple of ints
+            The step-size required to move from one element to the next in
+            memory. For example, a contiguous ``(3, 4)`` array of type
+            ``int16`` in C-order has strides ``(8, 2)``.  This implies that
+            to move from element to element in memory requires jumps of 2 bytes.
+            To move from row-to-row, one needs to jump 8 bytes at a time
+            (``2 * 4``).
+        ctypes : ctypes object
+            Class containing properties of the array needed for interaction
+            with ctypes.
+        base : ndarray
+            If the array is a view into another array, that array is its `base`
+            (unless that array is also a view).  The `base` array is where the
+            array data is actually stored.
+
+        See Also
+        --------
+        array : Construct an array.
+        zeros : Create an array, each element of which is zero.
+        empty : Create an array, but leave its allocated memory unchanged (i.e.,
+                it contains "garbage").
+        dtype : Create a data-type.
+
+        Notes
+        -----
+        There are two modes of creating an array using ``__new__``:
+
+        1. If `buffer` is None, then only `shape`, `dtype`, and `order`
+           are used.
+        2. If `buffer` is an object exposing the buffer interface, then
+           all keywords are interpreted.
+
+        No ``__init__`` method is needed because the array is fully initialized
+        after the ``__new__`` method.
+
+        Examples
+        --------
+        These examples illustrate the low-level `ndarray` constructor.  Refer
+        to the `See Also` section above for easier ways of constructing an
+        ndarray.
+
+        First mode, `buffer` is None:
+
+        >>> np.ndarray(shape=(2,2), dtype=float, order='F')
+        array([[ -1.13698227e+002,   4.25087011e-303],
+               [  2.88528414e-306,   3.27025015e-309]])         #random
+
+        Second mode:
+
+        >>> np.ndarray((2,), buffer=np.array([1,2,3]),
+        ...            offset=np.int_().itemsize,
+        ...            dtype=int) # offset = 1*itemsize, i.e. skip first element
+        array([2, 3])
+    """
+    pass
+
+    def __mul__(self, y): # real signature unknown; restored from __doc__
+        """
+            x.__mul__(y) <==> x*y
+
+            Returns
+            -------
+            out : ndarray
+        """
+        pass
+
+    def __rmul__(self, y): # real signature unknown; restored from __doc__
+        """
+            x.__rmul__(y) <==> x*y
+
+            Returns
+            -------
+            out : ndarray
+        """
+        pass
+
+    def __abs__(self): # real signature unknown; restored from __doc__
+        """
+            x.__abs__() <==> abs(x)
+
+            Returns
+            -------
+            out : ndarray
+        """
+        pass
+
+    def __add__(self, y): # real signature unknown; restored from __doc__
+        """
+            x.__add__(y) <==> x+y
+
+            Returns
+            -------
+            out : ndarray
+        """
+        pass
+
+    def __copy__(self, order=None): # real signature unknown; restored from __doc__
+        """
+        a.__copy__([order])
+
+            Return a copy of the array.
+
+            Parameters
+            ----------
+            order : {'C', 'F', 'A'}, optional
+                If order is 'C' (False) then the result is contiguous (default).
+                If order is 'Fortran' (True) then the result has fortran order.
+                If order is 'Any' (None) then the result has fortran order
+                only if the array already is in fortran order.
+
+            Returns
+            -------
+            out : ndarray
+        """
+        pass
+
+
+    def __div__(self, y): # real signature unknown; restored from __doc__
+        """
+            x.__div__(y) <==> x/y
+
+            Returns
+            -------
+            out : ndarray
+        """
+        pass
+
+
+    def __sub__(self, y): # real signature unknown; restored from __doc__
+        """
+            x.__sub__(y) <==> x-y
+
+            Returns
+            -------
+            out : ndarray
+        """
+        pass

python/helpers/python-skeletons/os/path.py

@@ -0,0 +1,293 @@
+"""Skeleton for 'os.path' stdlib module."""
+
+
+import sys
+import os
+
+
+def abspath(path):
+    """Return a normalized absolutized version of the pathname path.
+
+    :type path: T <= bytes | unicode
+    :rtype: T
+    """
+    return path
+
+
+def basename(path):
+    """Return the base name of pathname path.
+
+    :type path: T <= bytes | unicode
+    :rtype: T
+    """
+    return path
+
+
+def commonprefix(list):
+    """Return the longest path prefix (taken character-by-character) that is a
+    prefix of all paths in list.
+
+    :type list: collections.Iterable[T <= bytes | unicode]
+    :rtype T
+    """
+    pass
+
+
+def dirname(path):
+    """Return the directory name of pathname path.
+
+    :type path: T <= bytes | unicode
+    :rtype: T
+    """
+    return path
+
+
+def exists(path):
+    """Return True if path refers to an existing path. Returns False for broken
+    symbolic links.
+
+    :type path: bytes | unicode
+    :rtype: bool
+    """
+    return False
+
+
+def lexists(path):
+    """Return True if path refers to an existing path. Returns True for broken
+    symbolic links.
+
+    :type path: bytes | unicode
+    :rtype: bool
+    """
+    return False
+
+
+def expanduser(path):
+    """On Unix and Windows, return the argument with an initial component of ~
+    or ~user replaced by that user's home directory.
+
+    :type path: T <= bytes | unicode
+    :rtype: T
+    """
+    return path
+
+
+def expandvars(path):
+    """Return the argument with environment variables expanded.
+
+    :type path: T <= bytes | unicode
+    :rtype: T
+    """
+    return path
+
+
+def getatime(path):
+    """Return the time of last access of path.
+
+    :type path: bytes | unicode
+    :rtype: float
+    """
+    return 0.0
+
+
+def getmtime(path):
+    """Return the time of last modification of path.
+
+    :type path: bytes | unicode
+    :rtype: float
+    """
+    return 0.0
+
+
+def getctime(path):
+    """Return the system's ctime.
+
+    :type path: bytes | unicode
+    :rtype: float
+    """
+    return 0.0
+
+
+def getsize(path):
+    """Return the size, in bytes, of path.
+
+    :type path: bytes | unicode
+    :rtype: int
+    """
+    return 0
+
+
+def isabs(path):
+    """Return True if path is an absolute pathname.
+
+    :type path: bytes | unicode
+    :rtype: bool
+    """
+    return False
+
+
+def isfile(path):
+    """Return True if path is an existing regular file.
+
+    :type path: bytes | unicode
+    :rtype: bool
+    """
+    return False
+
+
+def isdir(path):
+    """Return True if path is an existing directory.
+
+    :type path: bytes | unicode
+    :rtype: bool
+    """
+    return False
+
+
+def islink(path):
+    """Return True if path refers to a directory entry that is a symbolic link.
+
+    :type path: bytes | unicode
+    :rtype: bool
+    """
+    return False
+
+
+def ismount(path):
+    """Return True if pathname path is a mount point: a point in a file system
+    where a different file system has been mounted.
+
+    :type path: bytes | unicode
+    :rtype: bool
+    """
+    return False
+
+
+def join(path, *paths):
+    """Join one or more path components intelligently.
+
+    :type path: T <= bytes | unicode
+    :type paths: collections.Iterable[T]
+    :rtype: T
+    """
+    return path
+
+
+def normcase(path):
+    """Normalize the case of a pathname.
+
+    :type path: T <= bytes | unicode
+    :rtype: T
+    """
+    return path
+
+
+def normpath(path):
+    """Normalize a pathname by collapsing redundant separators and up-level
+    references.
+
+    :type path: T <= bytes | unicode
+    :rtype: T
+    """
+    return path
+
+
+def realpath(path):
+    """Return the canonical path of the specified filename, eliminating any
+    symbolic links encountered in the path.
+
+    :type path: T <= bytes | unicode
+    :rtype: T
+    """
+    return path
+
+
+def relpath(path, start=os.curdir):
+    """Return a relative filepath to path either from the current directory or
+    from an optional start directory.
+
+    :type path: T <= bytes | unicode
+    :type start: T
+    :rtype: T
+    """
+    return path
+
+
+def samefile(path1, path2):
+    """Return True if both pathname arguments refer to the same file or
+    directory.
+
+    :type path1: bytes | unicode
+    :type path2: bytes | unicode
+    :rtype: bool
+    """
+    return False
+
+
+def sameopenfile(fp1, fp2):
+    """Return True if the file descriptors fp1 and fp2 refer to the same file.
+
+    :type fp1: int
+    :type fp2: int
+    :rtype: bool
+    """
+    return False
+
+
+def samestat(stat1, stat2):
+    """Return True if the stat tuples stat1 and stat2 refer to the same file.
+
+    :type stat1: os.stat_result | tuple
+    :type stat2: os.stat_result | tuple
+    :rtype: bool
+    """
+    return False
+
+
+def split(path):
+    """Split the pathname path into a pair, (head, tail).
+
+    :type path: T <= bytes | unicode
+    :rtype: (T, T)
+    """
+    return path, path
+
+
+def splitdrive(path):
+    """Split the pathname path into a pair (drive, tail).
+
+    :type path: T <= bytes | unicode
+    :rtype: (T, T)
+    """
+    return path, path
+
+
+def splitext(path):
+    """Split the pathname path into a pair (root, ext).
+
+    :type path: T <= bytes | unicode
+    :rtype: (T, T)
+    """
+    return path, path
+
+
+def splitunc(path):
+    """Split the pathname path into a pair (unc, rest).
+
+    :type path: T <= bytes | unicode
+    :rtype: (T, T)
+    """
+    return path, path
+
+
+if sys.version_info < (3, 0):
+    def walk(path, visit, arg):
+        """Calls the function visit with arguments (arg, dirname, names) for
+        each directory in the directory tree rooted at path.
+
+        :type path: T <= bytes | unicode
+        :type visit: (V, T, list[T]) -> None
+        :type arg: V
+        :rtype: None
+        """
+        pass

python/helpers/python-skeletons/pathlib.py

@@ -0,0 +1,373 @@
+"""Skeleton for 'pathlib' stdlib module."""
+
+import pathlib
+
+
+class PurePath(object):
+    def __new__(cls, *pathsegments):
+        """
+        :rtype: pathlib.PurePath
+        """
+        return cls.__new__(*pathsegments)
+
+    def __truediv__(self, key):
+        """
+        :type key: string | pathlib.PurePath
+        :rtype: pathlib.PurePath
+        """
+        return pathlib.PurePath()
+
+    def __rtruediv__(self, key):
+        """
+        :type key: string | pathlib.PurePath
+        :rtype: pathlib.PurePath
+        """
+        return pathlib.PurePath()
+
+    @property
+    def parts(self):
+        """
+        :rtype: tuple[str]
+        """
+        return ()
+
+    @property
+    def drive(self):
+        """
+        :rtype: str
+        """
+        return ''
+
+    @property
+    def root(self):
+        """
+        :rtype: str
+        """
+        return ''
+
+    @property
+    def anchor(self):
+        """
+        :rtype: str
+        """
+        return ''
+
+    @property
+    def parent(self):
+        """
+        :rtype: pathlib.PurePath | unknown
+        """
+        return pathlib.PurePath()
+
+    @property
+    def name(self):
+        """
+        :rtype: str
+        """
+        return ''
+
+    @property
+    def suffix(self):
+        """
+        :rtype: str
+        """
+        return ''
+
+    @property
+    def suffixes(self):
+        """
+        :rtype: list[str]
+        """
+        return []
+
+    @property
+    def stem(self):
+        """
+        :rtype: str
+        """
+        return ''
+
+    def as_posix(self):
+        """
+        :rtype: str
+        """
+        return ''
+
+    def as_uri(self):
+        """
+        :rtype: str
+        """
+        return ''
+
+    def is_absolute(self):
+        """
+        :rtype: bool
+        """
+        return False
+
+    def is_reserved(self):
+        """
+        :rtype: bool
+        """
+        return False
+
+    def joinpath(self, *other):
+        """
+        :rtype: pathlib.PurePath
+        """
+        return pathlib.PurePath()
+
+    def match(self, pattern):
+        """
+        :type pattern: string
+        :rtype: bool
+        """
+        return False
+
+    def relative_to(self, *other):
+        """
+        :rtype: pathlib.PurePath
+        """
+        return pathlib.PurePath()
+
+class PurePosixPath(pathlib.PurePath):
+    pass
+
+
+class PureWindowsPath(pathlib.PurePath):
+    pass
+
+
+class Path(pathlib.PurePath):
+    def __new__(cls, *pathsegments):
+        """
+        :rtype: pathlib.Path
+        """
+        return cls.__new__(*pathsegments)
+
+    def __truediv__(self, key):
+        """
+        :type key: string | pathlib.Path
+        :rtype: pathlib.Path
+        """
+        return pathlib.Path()
+
+    def __rtruediv__(self, key):
+        """
+        :type key: string | pathlib.Path
+        :rtype: pathlib.Path
+        """
+        return pathlib.Path()
+
+    @property
+    def parents(self):
+        """
+        :rtype: collections.Sequence[pathlib.Path]
+        """
+        return []
+
+    @property
+    def parent(self):
+        """
+        :rtype: pathlib.Path
+        """
+        return pathlib.Path()
+
+    def joinpath(self, *other):
+        """
+        :rtype: pathlib.Path
+        """
+        return pathlib.Path()
+
+    def relative_to(self, *other):
+        """
+        :rtype: pathlib.Path
+        """
+        return pathlib.Path()
+
+    @classmethod
+    def cwd(cls):
+        """
+        :rtype: pathlib.Path
+        """
+        return pathlib.Path()
+
+    def stat(self):
+        """
+        :rtype: os.stat_result
+        """
+        pass
+
+    def chmod(self, mode):
+        """
+        :rtype mode: int
+        :rtype: None
+        """
+        pass
+
+    def exists(self):
+        """
+        :rtype: bool
+        """
+        return False
+
+    def glob(self, pattern):
+        """
+        :type pattern: string
+        :rtype: collections.Iterable[pathlib.Path]
+        """
+        return []
+
+    def group(self):
+        """
+        :rtype: str
+        """
+        return ''
+
+    def is_dir(self):
+        """
+        :rtype: bool
+        """
+        return False
+
+    def is_file(self):
+        """
+        :rtype: bool
+        """
+        return False
+
+    def is_file(self):
+        """
+        :rtype: bool
+        """
+        return False
+
+    def is_symlink(self):
+        """
+        :rtype: bool
+        """
+        return False
+
+    def is_socket(self):
+        """
+        :rtype: bool
+        """
+        return False
+
+    def is_fifo(self):
+        """
+        :rtype: bool
+        """
+        return False
+
+    def is_block_device(self):
+        """
+        :rtype: bool
+        """
+        return False
+
+    def is_char_device(self):
+        """
+        :rtype: bool
+        """
+        return False
+
+    def iterdir(self):
+        """
+        :rtype: collections.Iterable[pathlib.Path]
+        """
+        return []
+
+    def lchmod(self, mode):
+        """
+        :rtype mode: int
+        :rtype: None
+        """
+        pass
+
+    def lstat(self):
+        """
+        :rtype: os.stat_result
+        """
+        pass
+
+    def mkdir(self, mode=0o777, parents=False):
+        """
+        :type mode: int
+        :type parents: bool
+        :rtype: None
+        """
+        pass
+
+    def open(self, mode='r', buffering=-1, encoding=None, errors=None,
+             newline=None):
+        """
+        :type mode: string
+        :type buffering: numbers.Integral
+        :type encoding: string | None
+        :type errors: string | None
+        :type newline: string | None
+        :rtype: io.FileIO[bytes] | io.TextIOWrapper[unicode]
+        """
+        pass
+
+    def owner(self):
+        """
+        :rtype: str
+        """
+        return ''
+
+    def rename(self, target):
+        """
+        :type target: string | pathlib.Path
+        :rtype: None
+        """
+        pass
+
+    def replace(self, target):
+        """
+        :type target: string | pathlib.Path
+        :rtype: None
+        """
+        pass
+
+    def resolve(self):
+        """
+        :rtype: pathlib.Path
+        """
+        return pathlib.Path()
+
+    def rglob(self, pattern):
+        """
+        :type pattern: string
+        :rtype: collections.Iterable[pathlib.Path]
+        """
+        return []
+
+    def rmdir(self):
+        """
+        :rtype: None
+        """
+        pass
+
+    def symlink_to(self, target, target_is_directory=False):
+        """
+        :type target: string | pathlib.Path
+        :type target_is_directory: bool
+        :rtype: None
+        """
+        pass
+
+    def touch(self, mode=0o777, exist_ok=True):
+        """
+        :type mode: int
+        :type exist_ok: bool
+        :rtype: None
+        """
+        pass
+
+    def unlink(self):
+        """
+        :rtype: None
+        """
+        pass

python/helpers/python-skeletons/pickle.py

@@ -0,0 +1,81 @@
+"""Skeleton for 'pickle' stdlib module."""
+
+
+HIGHEST_PROTOCOL = 0
+DEFAULT_PROTOCOL = 0
+
+
+def dump(obj, file, protocol=None, fix_imports=True):
+    """Write a pickled representation of obj to the open file object file.
+
+    :type protocol: numbers.Integral | None
+    :rtype: None
+    """
+    pass
+
+
+def dumps(obj, protocol=None, fix_imports=True):
+    """Return the pickled representation of the object as a bytes object,
+    instead of writing it to a file.
+
+    :type protocol: numbers.Integral | None
+    :rtype: bytes
+    """
+    return b''
+
+
+def load(file, fix_imports=True, encoding='ASCII', errors='strict'):
+    """Read a pickled object representation from the open file object file and
+    return the reconstituted object hierarchy specified therein.
+    """
+    pass
+
+
+def loads(bytes_object, fix_imports=True, encoding='ASCII', errors='strict'):
+    """Read a pickled object representation from the open file object file and
+    return the reconstituted object hierarchy specified therein.
+    """
+    pass
+
+
+class PickleError(Exception):
+    pass
+
+
+class PicklingError(PickleError):
+    pass
+
+
+class UnpicklingError(PickleError):
+    pass
+
+
+class Pickler(object):
+    """This takes a binary file for writing a pickle data stream."""
+
+    def __init__(self, file, protocol=None, fix_imports=True):
+        self.dispatch_table = None
+        self.fast = False
+
+    def dump(self, obj):
+        pass
+
+    def persistent_id(self, obj):
+        pass
+
+
+class Unpickler(object):
+    """This takes a binary file for reading a pickle data stream."""
+
+    def __init__(self, file, fix_imports=True, encoding='ASCII',
+                 errors='strict'):
+        pass
+
+    def load(self):
+        pass
+
+    def persistent_load(self, pid):
+        pass
+
+    def find_class(self, module, name):
+        pass

python/helpers/python-skeletons/re.py

@@ -0,0 +1,277 @@
+"""Skeleton for 're' stdlib module."""
+
+
+def compile(pattern, flags=0):
+    """Compile a regular expression pattern, returning a pattern object.
+
+    :type pattern: bytes | unicode
+    :type flags: int
+    :rtype: __Regex
+    """
+    pass
+
+
+def search(pattern, string, flags=0):
+    """Scan through string looking for a match, and return a corresponding
+    match instance. Return None if no position in the string matches.
+
+    :type pattern: bytes | unicode | __Regex
+    :type string: T <= bytes | unicode
+    :type flags: int
+    :rtype: __Match[T] | None
+    """
+    pass
+
+
+def match(pattern, string, flags=0):
+    """Matches zero or more characters at the beginning of the string.
+
+    :type pattern: bytes | unicode | __Regex
+    :type string: T <= bytes | unicode
+    :type flags: int
+    :rtype: __Match[T] | None
+    """
+    pass
+
+
+def split(pattern, string, maxsplit=0, flags=0):
+    """Split string by the occurrences of pattern.
+
+    :type pattern: bytes | unicode | __Regex
+    :type string: T <= bytes | unicode
+    :type maxsplit: int
+    :type flags: int
+    :rtype: list[T]
+    """
+    pass
+
+
+def findall(pattern, string, flags=0):
+    """Return a list of all non-overlapping matches of pattern in string.
+
+    :type pattern: bytes | unicode | __Regex
+    :type string: T <= bytes | unicode
+    :type flags: int
+    :rtype: list[T]
+    """
+    pass
+
+
+def finditer(pattern, string, flags=0):
+    """Return an iterator over all non-overlapping matches for the pattern in
+    string. For each match, the iterator returns a match object.
+
+    :type pattern: bytes | unicode | __Regex
+    :type string: T <= bytes | unicode
+    :type flags: int
+    :rtype: collections.Iterable[__Match[T]]
+    """
+    pass
+
+
+def sub(pattern, repl, string, count=0, flags=0):
+    """Return the string obtained by replacing the leftmost non-overlapping
+    occurrences of pattern in string by the replacement repl.
+
+    :type pattern: bytes | unicode | __Regex
+    :type repl: bytes | unicode | collections.Callable
+    :type string: T <= bytes | unicode
+    :type count: int
+    :type flags: int
+    :rtype: T
+    """
+    pass
+
+
+def subn(pattern, repl, string, count=0, flags=0):
+    """Return the tuple (new_string, number_of_subs_made) found by replacing
+    the leftmost non-overlapping occurrences of pattern with the
+    replacement repl.
+
+    :type pattern: bytes | unicode | __Regex
+    :type repl: bytes | unicode | collections.Callable
+    :type string: T <= bytes | unicode
+    :type count: int
+    :type flags: int
+    :rtype: (T, int)
+    """
+    pass
+
+
+def escape(string):
+    """Escape all the characters in pattern except ASCII letters and numbers.
+
+    :type string: T <= bytes | unicode
+    :type: T
+    """
+    pass
+
+
+class __Regex(object):
+    """Mock class for a regular expression pattern object."""
+
+    def __init__(self, flags, groups, groupindex, pattern):
+        """Create a new pattern object.
+
+        :type flags: int
+        :type groups: int
+        :type groupindex: dict[bytes | unicode, int]
+        :type pattern: bytes | unicode
+        """
+        self.flags = flags
+        self.groups = groups
+        self.groupindex = groupindex
+        self.pattern = pattern
+
+    def search(self, string, pos=0, endpos=-1):
+        """Scan through string looking for a match, and return a corresponding
+        match instance. Return None if no position in the string matches.
+
+        :type string: T <= bytes | unicode
+        :type pos: int
+        :type endpos: int
+        :rtype: __Match[T] | None
+        """
+        pass
+
+    def match(self, string, pos=0, endpos=-1):
+        """Matches zero | more characters at the beginning of the string.
+
+        :type string: T <= bytes | unicode
+        :type pos: int
+        :type endpos: int
+        :rtype: __Match[T] | None
+        """
+        pass
+
+    def split(self, string, maxsplit=0):
+        """Split string by the occurrences of pattern.
+
+        :type string: T <= bytes | unicode
+        :type maxsplit: int
+        :rtype: list[T]
+        """
+        pass
+
+    def findall(self, string, pos=0, endpos=-1):
+        """Return a list of all non-overlapping matches of pattern in string.
+
+        :type string: T <= bytes | unicode
+        :type pos: int
+        :type endpos: int
+        :rtype: list[T]
+        """
+        pass
+
+    def finditer(self, string, pos=0, endpos=-1):
+        """Return an iterator over all non-overlapping matches for the
+        pattern in string. For each match, the iterator returns a
+        match object.
+
+        :type string: T <= bytes | unicode
+        :type pos: int
+        :type endpos: int
+        :rtype: collections.Iterable[__Match[T]]
+        """
+        pass
+
+    def sub(self, repl, string, count=0):
+        """Return the string obtained by replacing the leftmost non-overlapping
+        occurrences of pattern in string by the replacement repl.
+
+        :type repl: bytes | unicode | collections.Callable
+        :type string: T <= bytes | unicode
+        :type count: int
+        :rtype: T
+        """
+        pass
+
+    def subn(self, repl, string, count=0):
+        """Return the tuple (new_string, number_of_subs_made) found by replacing
+        the leftmost non-overlapping occurrences of pattern with the
+        replacement repl.
+
+        :type repl: bytes | unicode | collections.Callable
+        :type string: T <= bytes | unicode
+        :type count: int
+        :rtype: (T, int)
+        """
+        pass
+
+
+class __Match(object):
+    """Mock class for a match object."""
+
+    def __init__(self, pos, endpos, lastindex, lastgroup, re, string):
+        """Create a new match object.
+
+        :type pos: int
+        :type endpos: int
+        :type lastindex: int | None
+        :type lastgroup: int | bytes | unicode | None
+        :type re: __Regex
+        :type string: bytes | unicode
+        :rtype: __Match[T]
+        """
+        self.pos = pos
+        self.endpos = endpos
+        self.lastindex = lastindex
+        self.lastgroup = lastgroup
+        self.re = re
+        self.string = string
+
+    def expand(self, template):
+        """Return the string obtained by doing backslash substitution on the
+        template string template.
+
+        :type template: T
+        :rtype: T
+        """
+        pass
+
+    def group(self, *args):
+        """Return one or more subgroups of the match.
+
+        :rtype: T | tuple
+        """
+        pass
+
+    def groups(self, default=None):
+        """Return a tuple containing all the subgroups of the match, from 1 up
+        to however many groups are in the pattern.
+
+        :rtype: tuple
+        """
+        pass
+
+    def groupdict(self, default=None):
+        """Return a dictionary containing all the named subgroups of the match,
+        keyed by the subgroup name.
+
+        :rtype: dict[bytes | unicode, T]
+        """
+        pass
+
+    def start(self, group=0):
+        """Return the index of the start of the substring matched by group.
+
+        :type group: int | bytes | unicode
+        :rtype: int
+        """
+        pass
+
+    def end(self, group=0):
+        """Return the index of the end of the substring matched by group.
+
+        :type group: int | bytes | unicode
+        :rtype: int
+        """
+        pass
+
+    def span(self, group=0):
+        """Return a 2-tuple (start, end) for the substring matched by group.
+
+        :type group: int | bytes | unicode
+        :rtype: (int, int)
+        """
+        pass

python/helpers/python-skeletons/shutil.py

@@ -0,0 +1,99 @@
+"""Skeleton for 'shutil' stdlib module."""
+
+
+import sys
+
+
+def copyfile(src, dst):
+    """Copy the contents (no metadata) of the file named src to a file named
+    dst.
+
+    :type src: bytes | unicode
+    :type dst: bytes | unicode
+    :rtype: None
+    """
+    pass
+
+
+def copymode(src, dst):
+    """Copy the permission bits from src to dst.
+
+    :type src: bytes | unicode
+    :type dst: bytes | unicode
+    :rtype: None
+    """
+    pass
+
+
+def copystat(src, dst):
+    """Copy the permission bits, last access time, last modification time, and
+    flags from src to dst.
+
+    :type src: bytes | unicode
+    :type dst: bytes | unicode
+    :rtype: None
+    """
+    pass
+
+
+def copy(src, dst):
+    """Copy the file src to the file or directory dst.
+
+    :type src: bytes | unicode
+    :type dst: bytes | unicode
+    :rtype: None
+    """
+    pass
+
+
+def copy2(src, dst):
+    """Similar to shutil.copy(), but metadata is copied as well.
+
+    :type src: bytes | unicode
+    :type dst: bytes | unicode
+    :rtype: None
+    """
+    pass
+
+
+def ignore_patterns(*patterns):
+    """This factory function creates a function that can be used as a callable
+    for copytree()'s ignore argument, ignoring files and directories that match
+    one of the glob-style patterns provided.
+
+    :type patterns: collections.Iterable[bytes | unicode]
+    :rtype: (bytes | unicode, list[bytes | unicode]) -> collections.Iterable[bytes | unicode]
+    """
+    return lambda path, files: []
+
+
+def copytree(src, dst, symlinks=False, ignore=None):
+    """Recursively copy an entire directory tree rooted at src.
+
+    :type src: bytes | unicode
+    :type dst: bytes | unicode
+    :type symlinks: bool
+    :type ignore: ((bytes | unicode, list[bytes | unicode]) -> collections.Iterable[bytes | unicode]) | None
+    :rtype: None
+    """
+    pass
+
+
+def rmtree(path, ignore_errors=False, onerror=None):
+    """Delete an entire directory tree.
+
+    :type path: bytes | unicode
+    :type ignore_errors: bool
+    :type onerror: (unknown, bytes | unicode, unknown) -> None
+    :rtype: None
+    """
+
+
+def move(src, dst):
+    """Recursively move a file or directory (src) to another location (dst).
+
+    :type src: bytes | unicode
+    :type dst: bytes | unicode
+    :rtype: None
+    """
+    pass

python/helpers/python-skeletons/sqlite3.py

@@ -0,0 +1,190 @@
+"""Skeleton for 'sqlite3' stdlib module."""
+
+
+import sqlite3
+
+
+def connect(database, timeout=5.0, detect_types=0, isolation_level=None,
+            check_same_thread=False, factory=None, cached_statements=100):
+    """Opens a connection to the SQLite database file database.
+
+    :type database: bytes | unicode
+    :type timeout: float
+    :type detect_types: int
+    :type isolation_level: string | None
+    :type check_same_thread: bool
+    :type factory: (() -> sqlite3.Connection) | None
+    :rtype: sqlite3.Connection
+    """
+    return sqlite3.Connection()
+
+
+def register_converter(typename, callable):
+    """Registers a callable to convert a bytestring from the database into a
+    custom Python type.
+
+    :type typename: string
+    :type callable: (bytes) -> unknown
+    :rtype: None
+    """
+    pass
+
+
+def register_adapter(type, callable):
+    """Registers a callable to convert the custom Python type type into one of
+    SQLite's supported types.
+
+    :type type: type
+    :type callable: (unknown) -> unknown
+    :rtype: None
+    """
+    pass
+
+
+def complete_statement(sql):
+    """Returns True if the string sql contains one or more complete SQL
+    statements terminated by semicolons.
+
+    :type sql: string
+    :rtype: bool
+    """
+    return False
+
+
+def enable_callback_tracebacks(flag):
+    """By default you will not get any tracebacks in user-defined functions,
+    aggregates, converters, authorizer callbacks etc.
+
+    :type flag: bool
+    :rtype: None
+    """
+    pass
+
+
+class Connection(object):
+    """A SQLite database connection."""
+
+    def cursor(self, cursorClass=None):
+        """
+        :type cursorClass: type | None
+        :rtype: sqlite3.Cursor
+        """
+        return sqlite3.Cursor()
+
+    def execute(self, sql, parameters=()):
+        """This is a nonstandard shortcut that creates an intermediate cursor
+        object by calling the cursor method, then calls the cursor's execute
+        method with the parameters given.
+
+        :type sql: string
+        :type parameters: collections.Iterable
+        :rtype: sqlite3.Cursor
+        """
+        pass
+
+    def executemany(self, sql, seq_of_parameters=()):
+        """This is a nonstandard shortcut that creates an intermediate cursor
+        object by calling the cursor method, then calls the cursor's
+        executemany method with the parameters given.
+
+        :type sql: string
+        :type seq_of_parameters: collections.Iterable[collections.Iterable]
+        :rtype: sqlite3.Cursor
+        """
+        pass
+
+    def executescript(self, sql_script):
+        """This is a nonstandard shortcut that creates an intermediate cursor
+        object by calling the cursor method, then calls the cursor's
+        executescript method with the parameters given.
+
+        :type sql_script: bytes | unicode
+        :rtype: sqlite3.Cursor
+        """
+        pass
+
+    def create_function(self, name, num_params, func):
+        """Creates a user-defined function that you can later use from within
+        SQL statements under the function name name.
+
+        :type name: string
+        :type num_params: int
+        :type func: collections.Callable
+        :rtype: None
+        """
+        pass
+
+
+    def create_aggregate(self, name, num_params, aggregate_class):
+        """Creates a user-defined aggregate function.
+
+        :type name: string
+        :type num_params: int
+        :type aggregate_class: type
+        :rtype: None
+        """
+        pass
+
+    def create_collation(self, name, callable):
+        """Creates a collation with the specified name and callable.
+
+        :type name: string
+        :type callable: collections.Callable
+        :rtype: None
+        """
+        pass
+
+
+class Cursor(object):
+    """A SQLite database cursor."""
+
+    def execute(self, sql, parameters=()):
+        """Executes an SQL statement.
+
+        :type sql: string
+        :type parameters: collections.Iterable
+        :rtype: sqlite3.Cursor
+        """
+        pass
+
+    def executemany(self, sql, seq_of_parameters=()):
+        """Executes an SQL command against all parameter sequences or mappings
+        found in the sequence.
+
+        :type sql: string
+        :type seq_of_parameters: collections.Iterable[collections.Iterable]
+        :rtype: sqlite3.Cursor
+        """
+        pass
+
+    def executescript(self, sql_script):
+        """This is a nonstandard convenience method for executing multiple SQL
+        statements at once.
+
+        :type sql_script: bytes | unicode
+        :rtype: sqlite3.Cursor
+        """
+        pass
+
+    def fetchone(self):
+        """Fetches the next row of a query result set, returning a single
+        sequence, or None when no more data is available.
+
+        :rtype: tuple | None
+        """
+        pass
+
+    def fetchmany(self, size=-1):
+        """Fetches the next set of rows of a query result, returning a list.
+
+        :type size: numbers.Integral
+        :rtype: list[tuple]
+        """
+        return []
+
+    def fetchall(self):
+        """Fetches all (remaining) rows of a query result, returning a list.
+
+        :rtype: list[tuple]
+        """
+        return []

python/helpers/python-skeletons/struct.py

@@ -0,0 +1,106 @@
+"""Skeleton for 'struct' stdlib module."""
+
+
+from __future__ import unicode_literals
+import sys
+
+
+def pack(fmt, *values):
+    """Return a string containing the values packed according to the given
+    format.
+
+    :type fmt: bytes | unicode
+    :rtype: bytes
+    """
+    return b''
+
+
+def unpack(fmt, string):
+    """Unpack the string according to the given format.
+
+    :type fmt: bytes | unicode
+    :type string: bytestring
+    :rtype: tuple
+    """
+    pass
+
+
+def pack_into(fmt, buffer, offset, *values):
+    """"Pack the values according to the given format, write the packed
+    bytes into the writable buffer starting at offset.
+
+    :type fmt: bytes | unicode
+    :type offset: int | long
+    :rtype: bytes
+    """
+    return b''
+
+def unpack_from(fmt, buffer, offset=0):
+    """Unpack the buffer according to the given format.
+
+    :type fmt: bytes | unicode
+    :type offset: int | long
+    :rtype: tuple
+    """
+    pass
+
+
+def calcsize(fmt):
+    """Return the size of the struct (and hence of the string) corresponding to
+    the given format.
+
+    :type fmt: bytes | unicode
+    :rtype: int
+    """
+    return 0
+
+
+class Struct(object):
+    """Struct object which writes and reads binary data according to the format
+    string.
+
+    :param format: The format string used to construct this Struct object.
+    :type format: bytes | unicode
+
+    :param size: The calculated size of the struct corresponding to format.
+    :type size: int
+    """
+
+    def __init__(self, format):
+        """Create a new Struct object.
+
+        :type format: bytes | unicode
+        """
+        self.format = format
+        self.size = 0
+
+    def pack(self, *values):
+        """Identical to the pack() function, using the compiled format.
+
+        :rtype: bytes
+        """
+        return b''
+
+    def pack_into(self, buffer, offset, *values):
+        """Identical to the pack_into() function, using the compiled format.
+
+        :type offset: int | long
+        :rtype: bytes
+        """
+        return b''
+
+    def unpack(self, string):
+        """Identical to the unpack() function, using the compiled format.
+
+        :type string: bytestring
+        :rtype: tuple
+        """
+        pass
+
+    def unpack_from(self, buffer, offset=0):
+        """Identical to the unpack_from() function, using the compiled format.
+
+        :type offset: int | long
+        :rtype: tuple
+        """
+        pass

python/helpers/python-skeletons/subprocess.py

@@ -0,0 +1,140 @@
+"""Skeleton for 'subprocess' stdlib module."""
+
+
+def call(args, bufsize=0, executable=None, stdin=None, stdout=None, stderr=None,
+         preexec_fn=None, close_fds=False, shell=False, cwd=None, env=None,
+         universal_newlines=False, startupinfo=None, creationflags=0,
+         timeout=None, restore_signals=True, start_new_session=False,
+         pass_fds=()):
+    """Run the command described by args.
+
+    :type args: collections.Iterable[bytes | unicode]
+    :type bufsize: int
+    :type executable: bytes | unicode | None
+    :type close_fds: bool
+    :type shell: bool
+    :type cwd: bytes | unicode | None
+    :type env: collections.Mapping | None
+    :type universal_newlines: bool
+    :type creationflags: int
+    :rtype: int
+    """
+    return 0
+
+
+def check_call(args, bufsize=0, executable=None, stdin=None, stdout=None,
+               stderr=None, preexec_fn=None, close_fds=False, shell=False,
+               cwd=None, env=None, universal_newlines=False, startupinfo=None,
+               creationflags=0, timeout=None, restore_signals=True,
+               start_new_session=False, pass_fds=()):
+    """Run command with arguments. Wait for command to complete. If the return
+    code was zero then return, otherwise raise CalledProcessError.
+
+    :type args: collections.Iterable[bytes | unicode]
+    :type bufsize: int
+    :type executable: bytes | unicode | None
+    :type close_fds: bool
+    :type shell: bool
+    :type cwd: bytes | unicode | None
+    :type env: collections.Mapping | None
+    :type universal_newlines: bool
+    :type creationflags: int
+    :rtype: int
+    """
+    return 0
+
+
+def check_output(args, bufsize=0, executable=None, stdin=None, stderr=None,
+                 preexec_fn=None, close_fds=False, shell=False, cwd=None,
+                 env=None, universal_newlines=False, startupinfo=None,
+                 creationflags=0, timeout=None, restore_signals=True,
+                 start_new_session=False, pass_fds=()):
+    """Run command with arguments and return its output as a byte string.
+
+    :type args: collections.Iterable[bytes | unicode]
+    :type bufsize: int
+    :type executable: bytes | unicode | None
+    :type close_fds: bool
+    :type shell: bool
+    :type cwd: bytes | unicode | None
+    :type env: collections.Mapping | None
+    :type universal_newlines: bool
+    :type creationflags: int
+    :rtype: bytes
+    """
+    pass
+
+
+class Popen(object):
+    """Execute a child program in a new process.
+
+    :type returncode: int
+    """
+
+    def __init__(self, args, bufsize=0, executable=None, stdin=None,
+                 stdout=None, stderr=None, preexec_fn=None, close_fds=False,
+                 shell=False, cwd=None, env=None, universal_newlines=False,
+                 startupinfo=None, creationflags=0, timeout=None,
+                 restore_signals=True, start_new_session=False, pass_fds=()):
+        """Popen constructor.
+
+        :type args: collections.Iterable[bytes | unicode]
+        :type bufsize: int
+        :type executable: bytes | unicode | None
+        :type close_fds: bool
+        :type shell: bool
+        :type cwd: bytes | unicode | None
+        :type env: collections.Mapping | None
+        :type universal_newlines: bool
+        :type creationflags: int
+        """
+        self.stdin = stdin
+        self.stdout = stdout
+        self.stderr = stderr
+        self.pid = 0
+        self.returncode = 0
+
+    def poll(self):
+        """Check if child process has terminated.
+
+        :rtype: int
+        """
+        return 0
+
+    def wait(self, timeout=None):
+        """Wait for child process to terminate.
+
+        :rtype: int
+        """
+        return 0
+
+    def communicate(self, input=None, timeout=None):
+        """Interact with process: Send data to stdin. Read data from stdout and
+        stderr, until end-of-file is reached.
+
+        :type input: bytes | unicode | None
+        :rtype: (bytes, bytes)
+        """
+        return b'', b''
+
+    def send_signal(self, signal):
+        """Sends the signal signal to the child.
+
+        :type signal: int
+        :rtype: None
+        """
+        pass
+
+    def terminate(self):
+        """Stop the child.
+
+        :rtype: None
+        """
+        pass
+
+    def kill(self):
+        """Kills the child.
+
+        :rtype: None
+        """
+        pass