get rid of django project name

python/ide/src/com/jetbrains/python/newProject/actions/AbstractProjectSettingsStep.java

@@ -29,6 +29,7 @@ import com.jetbrains.python.PythonSdkChooserCombo;
 import com.jetbrains.python.configuration.PyConfigurableInterpreterList;
 import com.jetbrains.python.configuration.VirtualEnvProjectFilter;
 import com.jetbrains.python.newProject.PyFrameworkProjectGenerator;
+import com.jetbrains.python.newProject.PythonProjectGenerator;
 import com.jetbrains.python.packaging.PyExternalProcessException;
 import com.jetbrains.python.packaging.PyPackage;
 import com.jetbrains.python.packaging.PyPackageManager;
@@ -73,12 +74,18 @@ abstract public class AbstractProjectSettingsStep extends AbstractActionWithPane
         @Override
         public void stateChanged(boolean validSettings) {
           checkValid();
-          if (validSettings) {
-            setErrorText(null);
-          }
         }
       });
     }
+    else if (myProjectGenerator instanceof PythonProjectGenerator) {
+      ((PythonProjectGenerator)myProjectGenerator).addSettingsStateListener(new PythonProjectGenerator.SettingsListener() {
+        @Override
+        public void stateChanged() {
+          checkValid();
+        }
+      });
+    }
+
     myCreateAction = new AnAction("Create    ", "Create Project", getIcon()) {
       @Override
       public void actionPerformed(AnActionEvent e) {

python/openapi/src/com/jetbrains/python/newProject/PythonProjectGenerator.java

@@ -1,12 +1,17 @@
 package com.jetbrains.python.newProject;
 
 import com.intellij.openapi.progress.ProcessCanceledException;
+import com.intellij.util.containers.ContainerUtil;
+import org.jetbrains.annotations.NotNull;
 import org.jetbrains.annotations.Nullable;
 
 import javax.swing.*;
 import java.io.File;
+import java.util.List;
 
 public abstract class PythonProjectGenerator {
+  private final List<SettingsListener> myListeners = ContainerUtil.newArrayList();
+
   @Nullable
   public JComponent getSettingsPanel(File baseDir) throws ProcessCanceledException {
     return null;
@@ -15,4 +20,18 @@ public abstract class PythonProjectGenerator {
   public Object getProjectSettings() {
     return new PyNewProjectSettings();
   }
+
+  public void addSettingsStateListener(@NotNull SettingsListener listener) {
+    myListeners.add(listener);
+  }
+
+  public interface SettingsListener {
+    void stateChanged();
+  }
+
+  public void fireStateChanged() {
+    for (SettingsListener listener : myListeners) {
+      listener.stateChanged();
+    }
+  }
 }