diff --git a/python/helpers/icons/PythonHelpersIcons.java b/python/helpers/icons/PythonHelpersIcons.java
index c80728d8bc73..63f1581154ff 100644
--- a/python/helpers/icons/PythonHelpersIcons.java
+++ b/python/helpers/icons/PythonHelpersIcons.java
@@ -9,6 +9,10 @@ import javax.swing.*;
  * Don't repeat mistakes of others ;-)
  */
 public class PythonHelpersIcons {
-  public static final Icon Keybd_closed = IconLoader.getIcon("/coverage/htmlfiles/keybd_closed.png"); // 35x12
-  public static final Icon Keybd_open = IconLoader.getIcon("/coverage/htmlfiles/keybd_open.png"); // 35x12
+  private static Icon load(String path) {
+    return IconLoader.getIcon(path, PythonHelpersIcons.class);
+  }
+
+  public static final Icon Keybd_closed = load("/coverage/htmlfiles/keybd_closed.png"); // 35x12
+  public static final Icon Keybd_open = load("/coverage/htmlfiles/keybd_open.png"); // 35x12
 }
diff --git a/python/pluginSrc/com/jetbrains/python/facet/PythonFacetType.java b/python/pluginSrc/com/jetbrains/python/facet/PythonFacetType.java
index a4b9c16d6cec..e71a767c58c8 100644
--- a/python/pluginSrc/com/jetbrains/python/facet/PythonFacetType.java
+++ b/python/pluginSrc/com/jetbrains/python/facet/PythonFacetType.java
@@ -9,12 +9,12 @@ import com.intellij.openapi.module.Module;
 import com.intellij.openapi.module.ModuleType;
 import com.intellij.openapi.projectRoots.ProjectJdkTable;
 import com.intellij.openapi.projectRoots.Sdk;
-import com.intellij.openapi.util.IconLoader;
 import com.intellij.patterns.ElementPattern;
 import com.intellij.util.indexing.FileContent;
 import com.jetbrains.python.PythonFileType;
 import com.jetbrains.python.module.PythonModuleType;
 import com.jetbrains.python.sdk.PythonSdkType;
+import icons.PythonIcons;
 import org.jetbrains.annotations.NonNls;
 import org.jetbrains.annotations.NotNull;
 import org.jetbrains.annotations.Nullable;
@@ -26,7 +26,7 @@ import java.util.List;
  * @author yole
  */
 public class PythonFacetType extends FacetType<PythonFacet, PythonFacetConfiguration> {
-  public static final Icon ICON = IconLoader.getIcon("/com/jetbrains/python/icons/python.png");
+  public static final Icon ICON = PythonIcons.Python.Icons.Python;
 
   @NonNls
   private static final String ID = "Python";
diff --git a/python/rest/src/com/jetbrains/rest/RestFileType.java b/python/rest/src/com/jetbrains/rest/RestFileType.java
index 63bdf14b9b32..3142be8b63aa 100644
--- a/python/rest/src/com/jetbrains/rest/RestFileType.java
+++ b/python/rest/src/com/jetbrains/rest/RestFileType.java
@@ -1,7 +1,7 @@
 package com.jetbrains.rest;
 
 import com.intellij.openapi.fileTypes.LanguageFileType;
-import com.intellij.openapi.util.IconLoader;
+import icons.RestIcons;
 import org.jetbrains.annotations.NonNls;
 import org.jetbrains.annotations.NotNull;
 import org.jetbrains.annotations.Nullable;
@@ -40,7 +40,7 @@ public class RestFileType extends LanguageFileType {
 
   @Nullable
   public Icon getIcon() {
-    return IconLoader.getIcon("/com/jetbrains/rest/res/rst.png", RestFileType.class);
+    return RestIcons.Rst;
   }
 }
 
diff --git a/python/rest/src/icons/RestIcons.java b/python/rest/src/icons/RestIcons.java
index 37a8509d1aee..810d775edecd 100644
--- a/python/rest/src/icons/RestIcons.java
+++ b/python/rest/src/icons/RestIcons.java
@@ -9,5 +9,9 @@ import javax.swing.*;
  * Don't repeat mistakes of others ;-)
  */
 public class RestIcons {
-  public static final Icon Rst = IconLoader.getIcon("/com/jetbrains/rest/res/rst.png"); // 16x16
+  private static Icon load(String path) {
+    return IconLoader.getIcon(path, RestIcons.class);
+  }
+
+  public static final Icon Rst = load("/com/jetbrains/rest/res/rst.png"); // 16x16
 }
diff --git a/python/src/com/jetbrains/pyqt/QtTranslationsFileType.java b/python/src/com/jetbrains/pyqt/QtTranslationsFileType.java
index bf0a5e545fd6..0961948be93e 100644
--- a/python/src/com/jetbrains/pyqt/QtTranslationsFileType.java
+++ b/python/src/com/jetbrains/pyqt/QtTranslationsFileType.java
@@ -1,7 +1,7 @@
 package com.jetbrains.pyqt;
 
 import com.intellij.openapi.fileTypes.FileType;
-import com.intellij.openapi.util.IconLoader;
+import icons.PythonIcons;
 
 /**
  * @author yole
@@ -10,7 +10,7 @@ public class QtTranslationsFileType extends QtFileType implements FileType {
   public static QtTranslationsFileType INSTANCE = new QtTranslationsFileType();
 
   protected QtTranslationsFileType() {
-    super("Qt translations file", "Qt Linguist translations files", "ts", IconLoader.getIcon("/com/jetbrains/pyqt/tsFile.png"));
+    super("Qt translations file", "Qt Linguist translations files", "ts", PythonIcons.Pyqt.TsFile);
   }
 
   protected String getToolName() {
diff --git a/python/src/com/jetbrains/pyqt/QtUIFileType.java b/python/src/com/jetbrains/pyqt/QtUIFileType.java
index 73985c82e681..7788662cdb51 100644
--- a/python/src/com/jetbrains/pyqt/QtUIFileType.java
+++ b/python/src/com/jetbrains/pyqt/QtUIFileType.java
@@ -1,7 +1,7 @@
 package com.jetbrains.pyqt;
 
 import com.intellij.openapi.fileTypes.FileType;
-import com.intellij.openapi.util.IconLoader;
+import icons.PythonIcons;
 
 /**
  * @author yole
@@ -10,7 +10,7 @@ public class QtUIFileType extends QtFileType implements FileType {
   public static QtUIFileType INSTANCE = new QtUIFileType();
 
   protected QtUIFileType() {
-    super("Qt UI file", "Qt UI Designer form files", "ui", IconLoader.getIcon("/com/jetbrains/pyqt/uiForm.png"));
+    super("Qt UI file", "Qt UI Designer form files", "ui", PythonIcons.Pyqt.UiForm);
   }
 
   protected String getToolName() {
diff --git a/python/src/com/jetbrains/python/PyIcons.java b/python/src/com/jetbrains/python/PyIcons.java
index 7f93670b0bda..c4738e9e7228 100644
--- a/python/src/com/jetbrains/python/PyIcons.java
+++ b/python/src/com/jetbrains/python/PyIcons.java
@@ -1,6 +1,6 @@
 package com.jetbrains.python;
 
-import com.intellij.openapi.util.IconLoader;
+import icons.PythonIcons;
 import org.jetbrains.annotations.NonNls;
 
 import javax.swing.*;
@@ -13,7 +13,7 @@ import javax.swing.*;
 public interface PyIcons {
   @NonNls String DATA_ROOT = "icons/"; /*"/com/jetbrains/python/PyIcons";*/
 
-  Icon PRIVATE = IconLoader.getIcon(DATA_ROOT + "nodes/lock.png");
-  Icon PREDEFINED = IconLoader.getIcon(DATA_ROOT + "nodes/cyan-dot.png");
-  Icon INVISIBLE = IconLoader.getIcon(DATA_ROOT + "nodes/red-inv-triangle.png");
+  Icon PRIVATE = PythonIcons.Python.Icons.Nodes.Lock;
+  Icon PREDEFINED = PythonIcons.Python.Icons.Nodes.Cyan_dot;
+  Icon INVISIBLE = PythonIcons.Python.Icons.Nodes.Red_inv_triangle;
 }
diff --git a/python/src/com/jetbrains/python/PythonModuleTypeBase.java b/python/src/com/jetbrains/python/PythonModuleTypeBase.java
index 73115756b36f..7f9801eed6fa 100644
--- a/python/src/com/jetbrains/python/PythonModuleTypeBase.java
+++ b/python/src/com/jetbrains/python/PythonModuleTypeBase.java
@@ -2,7 +2,7 @@ package com.jetbrains.python;
 
 import com.intellij.ide.util.projectWizard.ModuleBuilder;
 import com.intellij.openapi.module.ModuleType;
-import com.intellij.openapi.util.IconLoader;
+import icons.PythonIcons;
 import org.jetbrains.annotations.NonNls;
 
 import javax.swing.*;
@@ -12,9 +12,9 @@ import javax.swing.*;
  */
 public abstract class PythonModuleTypeBase<T extends ModuleBuilder> extends ModuleType<T> {
   @NonNls public static final String PYTHON_MODULE = "PYTHON_MODULE";
-  private final Icon myBigIcon = IconLoader.getIcon("/com/jetbrains/python/icons/python_24.png");
-  private final Icon myOpenIcon = IconLoader.getIcon("/com/jetbrains/python/icons/pythonOpen.png");
-  private final Icon myClosedIcon = IconLoader.getIcon("/com/jetbrains/python/icons/pythonClosed.png");
+  private final Icon myBigIcon = PythonIcons.Python.Icons.Python_24;
+  private final Icon myOpenIcon = PythonIcons.Python.Icons.PythonOpen;
+  private final Icon myClosedIcon = PythonIcons.Python.Icons.PythonClosed;
 
   protected PythonModuleTypeBase() {
     super(PYTHON_MODULE);
diff --git a/python/src/com/jetbrains/python/buildout/BuildoutFacetType.java b/python/src/com/jetbrains/python/buildout/BuildoutFacetType.java
index d999e0fa539b..b8a0e0a6e9af 100644
--- a/python/src/com/jetbrains/python/buildout/BuildoutFacetType.java
+++ b/python/src/com/jetbrains/python/buildout/BuildoutFacetType.java
@@ -6,8 +6,8 @@ import com.intellij.facet.FacetTypeId;
 import com.intellij.facet.FacetTypeRegistry;
 import com.intellij.openapi.module.Module;
 import com.intellij.openapi.module.ModuleType;
-import com.intellij.openapi.util.IconLoader;
 import com.jetbrains.python.PythonModuleTypeBase;
+import icons.PythonIcons;
 import org.jetbrains.annotations.NotNull;
 import org.jetbrains.annotations.Nullable;
 
@@ -48,7 +48,7 @@ public class BuildoutFacetType extends FacetType<BuildoutFacet, BuildoutFacetCon
     return (BuildoutFacetType)FacetTypeRegistry.getInstance().findFacetType(ID);
   }
 
-  public final static Icon BUILDOUT_ICON = IconLoader.getIcon("/com/jetbrains/python/icons/buildout/buildout.png");
+  public final static Icon BUILDOUT_ICON = PythonIcons.Python.Icons.Buildout.Buildout;
 
   @Override
   public Icon getIcon() {
diff --git a/python/src/com/jetbrains/python/codeInsight/intentions/SpecifyTypeInPy3AnnotationsIntention.java b/python/src/com/jetbrains/python/codeInsight/intentions/SpecifyTypeInPy3AnnotationsIntention.java
index 69ff9506e981..e3ab71f0b1c8 100644
--- a/python/src/com/jetbrains/python/codeInsight/intentions/SpecifyTypeInPy3AnnotationsIntention.java
+++ b/python/src/com/jetbrains/python/codeInsight/intentions/SpecifyTypeInPy3AnnotationsIntention.java
@@ -63,36 +63,33 @@ public class SpecifyTypeInPy3AnnotationsIntention implements IntentionAction {
     }
     final PyType type = problemElement.getType(TypeEvalContext.slow());
     if (type == null || type instanceof PyReturnTypeReference) {
-      PyFunction pyFunction = PsiTreeUtil.getParentOfType(problemElement, PyFunction.class);
       PsiReference reference = problemElement.getReference();
       if (problemElement instanceof PyQualifiedExpression) {
         final PyExpression qualifier = ((PyQualifiedExpression)problemElement).getQualifier();
         if (qualifier != null && !qualifier.getText().equals(PyNames.CANONICAL_SELF)) reference = qualifier.getReference();
       }
-      if (pyFunction != null) {
-        PyParameter parameter = null;
-        final PsiElement resolvedReference = reference != null?reference.resolve() : null;
-        if (problemElement instanceof PyParameter)
-          parameter = (PyParameter)problemElement;
-        else if (resolvedReference instanceof PyParameter)
-          parameter = (PyParameter)resolvedReference;
-        if (parameter instanceof PyNamedParameter && (((PyNamedParameter)parameter).getAnnotation() != null ||
-          parameter.getDefaultValue() != null)) return false;
-        if (parameter != null)
-          return true;
-        else {
-          if (resolvedReference instanceof PyTargetExpression) {
-            final PyExpression assignedValue = ((PyTargetExpression)resolvedReference).findAssignedValue();
-            if (assignedValue instanceof PyCallExpression) {
-              final PyExpression callee = ((PyCallExpression)assignedValue).getCallee();
-              if (callee != null) {
-                final PsiReference psiReference = callee.getReference();
-                if (psiReference != null && psiReference.resolve() == null) return false;
-              }
-              final Callable callable = ((PyCallExpression)assignedValue).resolveCalleeFunction(PyResolveContext.defaultContext());
-
-              if (callable instanceof PyFunction && ((PyFunction)callable).getAnnotation() == null) return true;
+      PyParameter parameter = null;
+      final PsiElement resolvedReference = reference != null?reference.resolve() : null;
+      if (problemElement instanceof PyParameter)
+        parameter = (PyParameter)problemElement;
+      else if (resolvedReference instanceof PyParameter)
+        parameter = (PyParameter)resolvedReference;
+      if (parameter instanceof PyNamedParameter && (((PyNamedParameter)parameter).getAnnotation() != null ||
+        parameter.getDefaultValue() != null)) return false;
+      if (parameter != null)
+        return true;
+      else {
+        if (resolvedReference instanceof PyTargetExpression) {
+          final PyExpression assignedValue = ((PyTargetExpression)resolvedReference).findAssignedValue();
+          if (assignedValue instanceof PyCallExpression) {
+            final PyExpression callee = ((PyCallExpression)assignedValue).getCallee();
+            if (callee != null) {
+              final PsiReference psiReference = callee.getReference();
+              if (psiReference != null && psiReference.resolve() == null) return false;
             }
+            final Callable callable = ((PyCallExpression)assignedValue).resolveCalleeFunction(PyResolveContext.defaultContext());
+
+            if (callable instanceof PyFunction && ((PyFunction)callable).getAnnotation() == null) return true;
           }
         }
       }
diff --git a/python/src/com/jetbrains/python/console/PythonDebugLanguageConsoleView.java b/python/src/com/jetbrains/python/console/PythonDebugLanguageConsoleView.java
index af5a925b4204..573dae8db9e5 100644
--- a/python/src/com/jetbrains/python/console/PythonDebugLanguageConsoleView.java
+++ b/python/src/com/jetbrains/python/console/PythonDebugLanguageConsoleView.java
@@ -20,7 +20,7 @@ import com.intellij.openapi.editor.ScrollType;
 import com.intellij.openapi.project.DumbAware;
 import com.intellij.openapi.project.Project;
 import com.intellij.openapi.projectRoots.Sdk;
-import com.intellij.openapi.util.IconLoader;
+import icons.PythonIcons;
 import org.jetbrains.annotations.NotNull;
 
 import javax.swing.*;
@@ -218,7 +218,7 @@ public class PythonDebugLanguageConsoleView extends JPanel implements ConsoleVie
 
     public ShowDebugConsoleAction(final PythonDebugLanguageConsoleView console) {
       super(ExecutionBundle.message("run.configuration.show.command.line.action.name"), null,
-            IconLoader.getIcon("/com/jetbrains/python/icons/debug/commandLine.png"));
+            PythonIcons.Python.Icons.Debug.CommandLine);
       myConsole = console;
     }
 
diff --git a/python/src/com/jetbrains/python/console/RunPythonConsoleAction.java b/python/src/com/jetbrains/python/console/RunPythonConsoleAction.java
index 3173c919b959..3cf9016bbd00 100644
--- a/python/src/com/jetbrains/python/console/RunPythonConsoleAction.java
+++ b/python/src/com/jetbrains/python/console/RunPythonConsoleAction.java
@@ -14,7 +14,6 @@ import com.intellij.openapi.project.DumbAware;
 import com.intellij.openapi.project.Project;
 import com.intellij.openapi.projectRoots.Sdk;
 import com.intellij.openapi.roots.ModuleRootManager;
-import com.intellij.openapi.util.IconLoader;
 import com.intellij.openapi.util.Pair;
 import com.intellij.openapi.util.io.FileUtil;
 import com.intellij.openapi.util.text.StringUtil;
@@ -22,6 +21,7 @@ import com.intellij.openapi.vfs.VirtualFile;
 import com.jetbrains.python.buildout.BuildoutFacet;
 import com.jetbrains.python.run.PythonCommandLineState;
 import com.jetbrains.python.sdk.PythonSdkType;
+import icons.PythonIcons;
 import org.jetbrains.annotations.NotNull;
 import org.jetbrains.annotations.Nullable;
 
@@ -34,7 +34,7 @@ public class RunPythonConsoleAction extends AnAction implements DumbAware {
 
   public RunPythonConsoleAction() {
     super();
-    getTemplatePresentation().setIcon(IconLoader.getIcon("/com/jetbrains/python/icons/python.png"));
+    getTemplatePresentation().setIcon(PythonIcons.Python.Icons.Python);
   }
 
   @Override
diff --git a/python/src/com/jetbrains/python/documentation/DocStringReferenceProvider.java b/python/src/com/jetbrains/python/documentation/DocStringReferenceProvider.java
index 7210f6493bbc..0e1a26b73967 100644
--- a/python/src/com/jetbrains/python/documentation/DocStringReferenceProvider.java
+++ b/python/src/com/jetbrains/python/documentation/DocStringReferenceProvider.java
@@ -43,14 +43,14 @@ public class DocStringReferenceProvider extends PsiReferenceProvider {
         StructuredDocString docString = StructuredDocString.parse(text);
         if (docString != null) {
           result.addAll(referencesFromNames(element, offset, docString,
-                                            docString.getTagArguments(StructuredDocString.PARAM_TAGS), "parameter"));
+                                            docString.getTagArguments(StructuredDocString.PARAM_TAGS), StructuredDocString.PARAMETER));
           result.addAll(referencesFromNames(element, offset, docString,
-                                            docString.getTagArguments(StructuredDocString.PARAM_TYPE_TAGS), "parameter_type"));
+                                            docString.getTagArguments(StructuredDocString.PARAM_TYPE_TAGS), StructuredDocString.PARAMETER_TYPE));
           result.addAll(referencesFromNames(element, offset, docString,
-                                            docString.getKeywordArgumentSubstrings(), "keyword"));
+                                            docString.getKeywordArgumentSubstrings(), StructuredDocString.KEYWORD));
 
           result.addAll(referencesFromNames(element, offset, docString,
-                                            docString.getTagArguments(StructuredDocString.VARIABLE_TAGS), "variable"));
+                                            docString.getTagArguments(StructuredDocString.VARIABLE_TAGS), StructuredDocString.VARIABLE));
         }
         return result.toArray(new PsiReference[result.size()]);
       }
@@ -69,9 +69,11 @@ public class DocStringReferenceProvider extends PsiReferenceProvider {
       if (PyNames.isIdentifier(s)) {
         result.add(new DocStringParameterReference(element, name.getTextRange().shiftRight(offset), refType));
       }
-      final Substring type = docString.getParamTypeSubstring(s);
-      if (type != null) {
-        result.addAll(parseTypeReferences(element, type, offset));
+      if (!refType.equals(StructuredDocString.PARAMETER_TYPE)) {
+        final Substring type = docString.getParamTypeSubstring(s);
+        if (type != null) {
+          result.addAll(parseTypeReferences(element, type, offset));
+        }
       }
     }
     final Substring rtype = docString.getReturnTypeSubstring();
diff --git a/python/src/com/jetbrains/python/documentation/StructuredDocString.java b/python/src/com/jetbrains/python/documentation/StructuredDocString.java
index d1fe556b9af4..de4b44d5f3c4 100644
--- a/python/src/com/jetbrains/python/documentation/StructuredDocString.java
+++ b/python/src/com/jetbrains/python/documentation/StructuredDocString.java
@@ -33,6 +33,11 @@ public abstract class StructuredDocString {
   public static String[] RAISES_TAGS = new String[] { "raises", "raise", "except", "exception" };
   public static String[] RETURN_TAGS = new String[] { "return", "returns" };
 
+  public static String PARAMETER = "parameter";
+  public static String PARAMETER_TYPE = "parameter_type";
+  public static String KEYWORD = "keyword";
+  public static String VARIABLE = "variable";
+
   @Nullable
   public static StructuredDocString parse(String text) {
     if (text == null) {
diff --git a/python/src/com/jetbrains/python/editor/PyJoinLinesHandler.java b/python/src/com/jetbrains/python/editor/PyJoinLinesHandler.java
index 6afb2274409a..16dd0faa3127 100644
--- a/python/src/com/jetbrains/python/editor/PyJoinLinesHandler.java
+++ b/python/src/com/jetbrains/python/editor/PyJoinLinesHandler.java
@@ -3,6 +3,7 @@ package com.jetbrains.python.editor;
 import com.intellij.codeInsight.editorActions.JoinRawLinesHandlerDelegate;
 import com.intellij.openapi.editor.Document;
 import com.intellij.openapi.util.TextRange;
+import com.intellij.openapi.util.text.StringUtil;
 import com.intellij.psi.PsiComment;
 import com.intellij.psi.PsiElement;
 import com.intellij.psi.PsiFile;
@@ -73,29 +74,52 @@ public class PyJoinLinesHandler implements JoinRawLinesHandlerDelegate {
       }
 
       // single string case PY-4375
+      final PyExpression leftExpression = request.leftExpr();
+      final PyExpression rightExpression = request.rightExpr();
       if (request.leftElem() == request.rightElem()) {
         IElementType type = request.leftElem().getNode().getElementType();
         if (PyTokenTypes.SINGLE_QUOTED_STRING == type || PyTokenTypes.SINGLE_QUOTED_UNICODE == type) {
-          PyExpression element = request.leftExpr();
+          PyExpression element = leftExpression;
           if (element == null) return CANNOT_JOIN;
-          String[] substrings = element.getText().split("\n");
-          if (substrings.length != 1) {
-            StringBuilder replacement = new StringBuilder();
-            for (String string : substrings) {
-              if (string.trim().endsWith("\\"))
-                replacement.append(string.substring(0, string.length()-1));
-              else
-                replacement.append(string);
-            }
-            document.replaceString(element.getTextOffset(), element.getTextOffset()+element.getTextLength(), replacement);
+          if (removeBackSlash(document, element, false)) {
             return element.getTextOffset();
           }
         }
       }
+      PsiElement expression = null;
+      if (leftExpression != null && rightExpression != null) {
+        if (PsiTreeUtil.isAncestor(leftExpression, rightExpression, false))
+          expression = leftExpression;
+        else if (PsiTreeUtil.isAncestor(rightExpression, leftExpression, false))
+          expression = rightExpression;
+        if (expression != null && !(expression instanceof PyStringLiteralExpression)) {
+          if (removeBackSlash(document, expression, true)) {
+            return expression.getTextOffset();
+          }
+        }
+      }
     }
     return CANNOT_JOIN;
   }
 
+  private boolean removeBackSlash(Document document, PsiElement element, boolean trim) {
+    String[] substrings = element.getText().split("\n");
+    if (substrings.length != 1) {
+      StringBuilder replacement = new StringBuilder();
+      for (String string : substrings) {
+        if (trim)
+          string = StringUtil.trimLeading(string);
+        if (string.trim().endsWith("\\"))
+          replacement.append(string.substring(0, string.length()-1));
+        else
+          replacement.append(string);
+      }
+      document.replaceString(element.getTextOffset(), element.getTextOffset()+element.getTextLength(), replacement);
+      return true;
+    }
+    return false;
+  }
+
   // a dumb immutable result holder
   private static class Result {
     final String myInsert;
diff --git a/python/src/com/jetbrains/python/inspections/PyUnresolvedReferencesInspection.java b/python/src/com/jetbrains/python/inspections/PyUnresolvedReferencesInspection.java
index 03dab57430dc..35f927ce0e4a 100644
--- a/python/src/com/jetbrains/python/inspections/PyUnresolvedReferencesInspection.java
+++ b/python/src/com/jetbrains/python/inspections/PyUnresolvedReferencesInspection.java
@@ -449,6 +449,11 @@ public class PyUnresolvedReferencesInspection extends PyInspection {
       if (description == null) {
         boolean marked_qualified = false;
         if (element instanceof PyQualifiedExpression) {
+          // TODO: Add __qualname__ for Python 3.3 to the skeleton of <class 'object'>, introduce a pseudo-class skeleton for
+          // <class 'function'>
+          if ("__qualname__".equals(ref_text) && LanguageLevel.forElement(element).isAtLeast(LanguageLevel.PYTHON33)) {
+            return;
+          }
           final PyQualifiedExpression qexpr = (PyQualifiedExpression)element;
           if (PyNames.COMPARISON_OPERATORS.contains(qexpr.getReferencedName()) || refname == null) {
             return;
diff --git a/python/src/com/jetbrains/python/psi/impl/PyFunctionImpl.java b/python/src/com/jetbrains/python/psi/impl/PyFunctionImpl.java
index 1859530767de..45171a16d327 100644
--- a/python/src/com/jetbrains/python/psi/impl/PyFunctionImpl.java
+++ b/python/src/com/jetbrains/python/psi/impl/PyFunctionImpl.java
@@ -3,7 +3,6 @@ package com.jetbrains.python.psi.impl;
 import com.google.common.collect.Maps;
 import com.intellij.lang.ASTNode;
 import com.intellij.openapi.extensions.Extensions;
-import com.intellij.openapi.util.IconLoader;
 import com.intellij.openapi.util.Pair;
 import com.intellij.openapi.util.Ref;
 import com.intellij.openapi.util.text.StringUtil;
@@ -30,6 +29,7 @@ import com.jetbrains.python.psi.stubs.PyFunctionStub;
 import com.jetbrains.python.psi.stubs.PyTargetExpressionStub;
 import com.jetbrains.python.psi.types.*;
 import com.jetbrains.python.sdk.PythonSdkType;
+import icons.PythonIcons;
 import org.jetbrains.annotations.NotNull;
 import org.jetbrains.annotations.Nullable;
 
@@ -44,9 +44,9 @@ import static com.jetbrains.python.psi.impl.PyCallExpressionHelper.interpretAsMo
  * Implements PyFunction.
  */
 public class PyFunctionImpl extends PyPresentableElementImpl<PyFunctionStub> implements PyFunction {
-  private static final Icon PROPERTY_GETTER = IconLoader.findIcon("/com/jetbrains/python/icons/propertyGetter.png");
-  private static final Icon PROPERTY_SETTER = IconLoader.findIcon("/com/jetbrains/python/icons/propertySetter.png");
-  private static final Icon PROPERTY_DELETER = IconLoader.findIcon("/com/jetbrains/python/icons/propertyDeleter.png");
+  private static final Icon PROPERTY_GETTER = PythonIcons.Python.Icons.PropertyGetter;
+  private static final Icon PROPERTY_SETTER = PythonIcons.Python.Icons.PropertySetter;
+  private static final Icon PROPERTY_DELETER = PythonIcons.Python.Icons.PropertyDeleter;
 
   public PyFunctionImpl(ASTNode astNode) {
     super(astNode);
diff --git a/python/src/com/jetbrains/python/run/PythonConfigurationType.java b/python/src/com/jetbrains/python/run/PythonConfigurationType.java
index 3098fa9d07a3..2abe39117d20 100644
--- a/python/src/com/jetbrains/python/run/PythonConfigurationType.java
+++ b/python/src/com/jetbrains/python/run/PythonConfigurationType.java
@@ -6,7 +6,7 @@ import com.intellij.execution.configurations.RunConfiguration;
 import com.intellij.execution.configurations.RunConfigurationModule;
 import com.intellij.openapi.extensions.Extensions;
 import com.intellij.openapi.project.Project;
-import com.intellij.openapi.util.IconLoader;
+import icons.PythonIcons;
 import org.jetbrains.annotations.NonNls;
 import org.jetbrains.annotations.NotNull;
 
@@ -29,7 +29,7 @@ public class PythonConfigurationType implements ConfigurationType {
     return null;
   }
 
-  private final Icon _icon = IconLoader.getIcon("/com/jetbrains/python/icons/python.png");
+  private final Icon _icon = PythonIcons.Python.Icons.Python;
 
   private static class PythonConfigurationFactory extends ConfigurationFactory {
     protected PythonConfigurationFactory(ConfigurationType configurationType) {
diff --git a/python/src/com/jetbrains/python/sdk/IronPythonSdkFlavor.java b/python/src/com/jetbrains/python/sdk/IronPythonSdkFlavor.java
index 1f556e56c539..11821f160903 100644
--- a/python/src/com/jetbrains/python/sdk/IronPythonSdkFlavor.java
+++ b/python/src/com/jetbrains/python/sdk/IronPythonSdkFlavor.java
@@ -1,8 +1,8 @@
 package com.jetbrains.python.sdk;
 
 import com.intellij.execution.configurations.GeneralCommandLine;
-import com.intellij.openapi.util.IconLoader;
 import com.intellij.openapi.util.text.StringUtil;
+import icons.PythonIcons;
 import org.jetbrains.annotations.NotNull;
 
 import javax.swing.*;
@@ -84,6 +84,6 @@ public class IronPythonSdkFlavor extends PythonSdkFlavor {
 
   @Override
   public Icon getIcon() {
-    return IconLoader.getIcon("/com/jetbrains/python/icons/dotnet.png");
+    return PythonIcons.Python.Icons.Dotnet;
   }
 }
diff --git a/python/src/com/jetbrains/python/sdk/JythonSdkFlavor.java b/python/src/com/jetbrains/python/sdk/JythonSdkFlavor.java
index 363f08a9e205..28fdb5b001cd 100644
--- a/python/src/com/jetbrains/python/sdk/JythonSdkFlavor.java
+++ b/python/src/com/jetbrains/python/sdk/JythonSdkFlavor.java
@@ -2,10 +2,10 @@ package com.jetbrains.python.sdk;
 
 import com.intellij.execution.configurations.GeneralCommandLine;
 import com.intellij.execution.configurations.ParamsGroup;
-import com.intellij.openapi.util.IconLoader;
 import com.intellij.openapi.util.io.FileUtil;
 import com.intellij.openapi.util.text.StringUtil;
 import com.jetbrains.python.run.PythonCommandLineState;
+import icons.PythonIcons;
 import org.jetbrains.annotations.NotNull;
 
 import javax.swing.*;
@@ -66,6 +66,6 @@ public class JythonSdkFlavor extends PythonSdkFlavor {
 
   @Override
   public Icon getIcon() {
-    return IconLoader.getIcon("/com/jetbrains/python/icons/jython.png");
+    return PythonIcons.Python.Icons.Jython;
   }
 }
diff --git a/python/src/com/jetbrains/python/sdk/MacPythonSdkFlavor.java b/python/src/com/jetbrains/python/sdk/MacPythonSdkFlavor.java
index 416b22fef9cd..c233efd531ae 100644
--- a/python/src/com/jetbrains/python/sdk/MacPythonSdkFlavor.java
+++ b/python/src/com/jetbrains/python/sdk/MacPythonSdkFlavor.java
@@ -16,6 +16,7 @@ public class MacPythonSdkFlavor extends CPythonSdkFlavor {
   }
 
   public static MacPythonSdkFlavor INSTANCE = new MacPythonSdkFlavor();
+  private static final String[] POSSIBLE_BINARY_NAMES = {"python", "python2", "python3"};
 
   @Override
   public Collection<String> suggestHomePaths() {
@@ -36,10 +37,15 @@ public class MacPythonSdkFlavor extends CPythonSdkFlavor {
         final String dir_name = dir.getName().toLowerCase();
         if (dir.isDirectory()) {
           if ("Current".equals(dir_name) || dir_name.startsWith("2") || dir_name.startsWith("3")) {
-            VirtualFile bin_dir = dir.findChild("bin");
-            if (bin_dir != null && bin_dir.isDirectory()) {
-              VirtualFile python_exe = bin_dir.findChild("python");
-              if (python_exe != null) candidates.add(python_exe.getPath());
+            final VirtualFile binDir = dir.findChild("bin");
+            if (binDir != null && binDir.isDirectory()) {
+              for (String name : POSSIBLE_BINARY_NAMES) {
+                final VirtualFile child = binDir.findChild(name);
+                if (child != null) {
+                  candidates.add(child.getPath());
+                  break;
+                }
+              }
             }
           }
         }
diff --git a/python/src/com/jetbrains/python/sdk/PyPySdkFlavor.java b/python/src/com/jetbrains/python/sdk/PyPySdkFlavor.java
index 20b34516cfa2..b948a9c95507 100644
--- a/python/src/com/jetbrains/python/sdk/PyPySdkFlavor.java
+++ b/python/src/com/jetbrains/python/sdk/PyPySdkFlavor.java
@@ -1,10 +1,10 @@
 package com.jetbrains.python.sdk;
 
 import com.intellij.openapi.projectRoots.Sdk;
-import com.intellij.openapi.util.IconLoader;
 import com.intellij.openapi.util.io.FileUtil;
 import com.intellij.openapi.util.text.StringUtil;
 import com.jetbrains.python.psi.LanguageLevel;
+import icons.PythonIcons;
 import org.jetbrains.annotations.NotNull;
 
 import javax.swing.*;
@@ -77,6 +77,6 @@ public class PyPySdkFlavor extends PythonSdkFlavor {
 
   @Override
   public Icon getIcon() {
-    return IconLoader.getIcon("/com/jetbrains/python/icons/pypy.png");
+    return PythonIcons.Python.Icons.Pypy;
   }
 }
diff --git a/python/src/com/jetbrains/python/sdk/PythonSdkFlavor.java b/python/src/com/jetbrains/python/sdk/PythonSdkFlavor.java
index f80c9e12c803..d257402d02ea 100644
--- a/python/src/com/jetbrains/python/sdk/PythonSdkFlavor.java
+++ b/python/src/com/jetbrains/python/sdk/PythonSdkFlavor.java
@@ -6,12 +6,12 @@ import com.intellij.execution.process.ProcessOutput;
 import com.intellij.openapi.diagnostic.Logger;
 import com.intellij.openapi.projectRoots.Sdk;
 import com.intellij.openapi.projectRoots.SdkAdditionalData;
-import com.intellij.openapi.util.IconLoader;
 import com.intellij.openapi.util.SystemInfo;
 import com.intellij.openapi.util.io.FileUtil;
 import com.intellij.openapi.util.text.StringUtil;
 import com.intellij.openapi.vfs.encoding.EncodingManager;
 import com.jetbrains.python.psi.LanguageLevel;
+import icons.PythonIcons;
 import org.jetbrains.annotations.NotNull;
 import org.jetbrains.annotations.Nullable;
 
@@ -226,6 +226,6 @@ public abstract class PythonSdkFlavor {
   }
 
   public Icon getIcon() {
-    return IconLoader.getIcon("/com/jetbrains/python/icons/python.png");
+    return PythonIcons.Python.Icons.Python;
   }
 }
diff --git a/python/src/com/jetbrains/python/sdk/PythonSdkType.java b/python/src/com/jetbrains/python/sdk/PythonSdkType.java
index 5df5247449e6..f6cefba7431f 100644
--- a/python/src/com/jetbrains/python/sdk/PythonSdkType.java
+++ b/python/src/com/jetbrains/python/sdk/PythonSdkType.java
@@ -28,7 +28,6 @@ import com.intellij.openapi.roots.ModuleRootManager;
 import com.intellij.openapi.roots.OrderRootType;
 import com.intellij.openapi.ui.Messages;
 import com.intellij.openapi.util.Comparing;
-import com.intellij.openapi.util.IconLoader;
 import com.intellij.openapi.util.Ref;
 import com.intellij.openapi.util.SystemInfo;
 import com.intellij.openapi.util.io.FileUtil;
@@ -46,6 +45,7 @@ import com.jetbrains.python.psi.LanguageLevel;
 import com.jetbrains.python.psi.impl.PyBuiltinCache;
 import com.jetbrains.python.psi.search.PyProjectScopeBuilder;
 import com.jetbrains.python.remote.PythonRemoteSdkAdditionalData;
+import icons.PythonIcons;
 import org.jdom.Element;
 import org.jetbrains.annotations.NonNls;
 import org.jetbrains.annotations.NotNull;
@@ -84,7 +84,7 @@ public class PythonSdkType extends SdkType {
   }
 
   public Icon getIcon() {
-    return IconLoader.getIcon("/com/jetbrains/python/icons/python.png");
+    return PythonIcons.Python.Icons.Python;
   }
 
   @NotNull
diff --git a/python/src/com/jetbrains/python/sdk/VirtualEnvSdkFlavor.java b/python/src/com/jetbrains/python/sdk/VirtualEnvSdkFlavor.java
index c9ea879fbcfd..a59aac80ced0 100644
--- a/python/src/com/jetbrains/python/sdk/VirtualEnvSdkFlavor.java
+++ b/python/src/com/jetbrains/python/sdk/VirtualEnvSdkFlavor.java
@@ -3,12 +3,12 @@ package com.jetbrains.python.sdk;
 import com.intellij.ide.DataManager;
 import com.intellij.openapi.actionSystem.PlatformDataKeys;
 import com.intellij.openapi.project.Project;
-import com.intellij.openapi.util.IconLoader;
 import com.intellij.openapi.util.SystemInfo;
 import com.intellij.openapi.util.text.StringUtil;
 import com.intellij.openapi.vfs.LocalFileSystem;
 import com.intellij.openapi.vfs.VirtualFile;
 import com.intellij.util.SystemProperties;
+import icons.PythonIcons;
 import org.jetbrains.annotations.NotNull;
 import org.jetbrains.annotations.Nullable;
 
@@ -117,6 +117,6 @@ public class VirtualEnvSdkFlavor extends CPythonSdkFlavor {
 
   @Override
   public Icon getIcon() {
-    return IconLoader.getIcon("/com/jetbrains/python/icons/virtualenv.png");
+    return PythonIcons.Python.Icons.Virtualenv;
   }
 }
diff --git a/python/src/com/jetbrains/python/testing/PythonTestConfigurationType.java b/python/src/com/jetbrains/python/testing/PythonTestConfigurationType.java
index 1fa6fbd8c428..28b069ae8fa4 100644
--- a/python/src/com/jetbrains/python/testing/PythonTestConfigurationType.java
+++ b/python/src/com/jetbrains/python/testing/PythonTestConfigurationType.java
@@ -2,13 +2,13 @@ package com.jetbrains.python.testing;
 
 import com.intellij.execution.configurations.*;
 import com.intellij.openapi.project.Project;
-import com.intellij.openapi.util.IconLoader;
 import com.jetbrains.python.PyBundle;
 import com.jetbrains.python.testing.attest.PythonAtTestRunConfiguration;
 import com.jetbrains.python.testing.doctest.PythonDocTestRunConfiguration;
 import com.jetbrains.python.testing.nosetest.PythonNoseTestRunConfiguration;
 import com.jetbrains.python.testing.pytest.PyTestRunConfiguration;
 import com.jetbrains.python.testing.unittest.PythonUnitTestRunConfiguration;
+import icons.PythonIcons;
 import org.jetbrains.annotations.NotNull;
 
 import javax.swing.*;
@@ -29,7 +29,7 @@ public class PythonTestConfigurationType implements ConfigurationType {
     return ConfigurationTypeUtil.findConfigurationType(PythonTestConfigurationType.class);
   }
 
-  private static final Icon ICON = IconLoader.getIcon("/com/jetbrains/python/icons/pythonTests.png");
+  private static final Icon ICON = PythonIcons.Python.Icons.PythonTests;
 
   private static class PythonUnitTestConfigurationFactory extends ConfigurationFactory {
     protected PythonUnitTestConfigurationFactory(ConfigurationType configurationType) {
diff --git a/python/testData/inspections/PyUnresolvedReferencesInspection/qualNameAttribute.py b/python/testData/inspections/PyUnresolvedReferencesInspection/qualNameAttribute.py
new file mode 100644
index 000000000000..f1bb4a6e0d01
--- /dev/null
+++ b/python/testData/inspections/PyUnresolvedReferencesInspection/qualNameAttribute.py
@@ -0,0 +1,10 @@
+class C:
+    pass
+
+def f(x):
+    x.__qualname__ #pass
+
+C.__qualname__ #pass
+c = C()
+c.__qualname__ #pass
+f.__qualname__ #pass
diff --git a/python/testData/joinLines/LongExpression-after.py b/python/testData/joinLines/LongExpression-after.py
new file mode 100644
index 000000000000..7fc1972a9b79
--- /dev/null
+++ b/python/testData/joinLines/LongExpression-after.py
@@ -0,0 +1 @@
+really_really_really_really_really_really_really_long_name = percentage_complete.as_integer_ratio()
\ No newline at end of file
diff --git a/python/testData/joinLines/LongExpression.py b/python/testData/joinLines/LongExpression.py
new file mode 100644
index 000000000000..a58f8434142f
--- /dev/null
+++ b/python/testData/joinLines/LongExpression.py
@@ -0,0 +1,2 @@
+really_really_really_really_rea<caret>lly_really_really_long_name = percentage_complete\
+            .as_integer_ratio()
\ No newline at end of file
diff --git a/python/testData/resolve/ReferenceInDocstring.py b/python/testData/resolve/ReferenceInDocstring.py
new file mode 100644
index 000000000000..d3a566e71135
--- /dev/null
+++ b/python/testData/resolve/ReferenceInDocstring.py
@@ -0,0 +1,7 @@
+from datetime import datetime
+
+def foo(p):
+    """Foo
+    :param datetime p: a datetime
+             <ref>
+    """
\ No newline at end of file
diff --git a/python/testSrc/com/jetbrains/python/PyJoinLinesTest.java b/python/testSrc/com/jetbrains/python/PyJoinLinesTest.java
index 93234c071898..cfec42363c17 100644
--- a/python/testSrc/com/jetbrains/python/PyJoinLinesTest.java
+++ b/python/testSrc/com/jetbrains/python/PyJoinLinesTest.java
@@ -65,4 +65,5 @@ public class PyJoinLinesTest extends PyTestCase {
   public void testTwoStatements() { doTest(); }
   public void testStringWithSlash() { doTest(); }
   public void testListOfStrings() { doTest(); }
+  public void testLongExpression() { doTest(); }
 }
diff --git a/python/testSrc/com/jetbrains/python/PyResolveTest.java b/python/testSrc/com/jetbrains/python/PyResolveTest.java
index 3991c0d911c0..ab3a496bf146 100644
--- a/python/testSrc/com/jetbrains/python/PyResolveTest.java
+++ b/python/testSrc/com/jetbrains/python/PyResolveTest.java
@@ -476,4 +476,8 @@ public class PyResolveTest extends PyResolveTestCase {
   public void testKWArg() {
     assertResolvesTo(PyClass.class, "timedelta");
   }
+
+  public void testReferenceInDocstring() {
+    assertResolvesTo(PyClass.class, "datetime");
+  }
 }
diff --git a/python/testSrc/com/jetbrains/python/fixtures/PyTestCase.java b/python/testSrc/com/jetbrains/python/fixtures/PyTestCase.java
index f1142c26a00d..6697b0775462 100644
--- a/python/testSrc/com/jetbrains/python/fixtures/PyTestCase.java
+++ b/python/testSrc/com/jetbrains/python/fixtures/PyTestCase.java
@@ -27,6 +27,7 @@ import com.jetbrains.python.psi.LanguageLevel;
 import com.jetbrains.python.psi.PyFile;
 import com.jetbrains.python.psi.impl.PyFileImpl;
 import com.jetbrains.python.psi.impl.PythonLanguageLevelPusher;
+import org.jetbrains.annotations.NotNull;
 import org.jetbrains.annotations.Nullable;
 
 /**
@@ -89,6 +90,16 @@ public abstract class PyTestCase extends UsefulTestCase {
     PythonLanguageLevelPusher.setForcedLanguageLevel(myFixture.getProject(), languageLevel);
   }
 
+  protected void runWithLanguageLevel(@NotNull LanguageLevel languageLevel, @NotNull Runnable action) {
+    setLanguageLevel(languageLevel);
+    try {
+      action.run();
+    }
+    finally {
+      setLanguageLevel(null);
+    }
+  }
+
   protected static void assertNotParsed(PyFile file) {
     assertNull(PARSED_ERROR_MSG, ((PyFileImpl)file).getTreeElement());
   }
diff --git a/python/testSrc/com/jetbrains/python/inspections/PyUnresolvedReferencesInspectionTest.java b/python/testSrc/com/jetbrains/python/inspections/PyUnresolvedReferencesInspectionTest.java
index a5bbed89e7b9..71642e4d361f 100644
--- a/python/testSrc/com/jetbrains/python/inspections/PyUnresolvedReferencesInspectionTest.java
+++ b/python/testSrc/com/jetbrains/python/inspections/PyUnresolvedReferencesInspectionTest.java
@@ -1,6 +1,7 @@
 package com.jetbrains.python.inspections;
 
 import com.jetbrains.python.fixtures.PyTestCase;
+import com.jetbrains.python.psi.LanguageLevel;
 import org.jetbrains.annotations.NotNull;
 
 /**
@@ -190,6 +191,16 @@ public class PyUnresolvedReferencesInspectionTest extends PyTestCase {
     doTest();
   }
 
+  // PY-6745
+  public void testQualNameAttribute() {
+    runWithLanguageLevel(LanguageLevel.PYTHON33, new Runnable() {
+      @Override
+      public void run() {
+        doTest();
+      }
+    });
+  }
+
   private void doTest() {
     myFixture.configureByFile(TEST_DIRECTORY + getTestName(true) + ".py");
     myFixture.enableInspections(PyUnresolvedReferencesInspection.class);