ignore unused 'request' parameter for Django request methods

python/src/META-INF/python-plugin-common.xml

@@ -282,6 +282,7 @@
     <extensionPoint qualifiedName="Pythonid.unresolvedReferenceQuickFixProvider"
                     interface="com.jetbrains.python.inspections.PyUnresolvedReferenceQuickFixProvider"/>
     <extensionPoint qualifiedName="Pythonid.dumbAnnotator" interface="com.jetbrains.python.validation.PyAnnotator"/>
+    <extensionPoint qualifiedName="Pythonid.unusedLocalFilter" interface="com.jetbrains.python.inspections.UnusedLocalFilter"/>
   </extensionPoints>
 
   <extensions defaultExtensionNs="Pythonid">
@@ -298,6 +299,7 @@
     <typeProvider implementation="com.jetbrains.django.codeInsight.DjangoTypeProvider"/>
     <unresolvedReferenceQuickFixProvider implementation="com.jetbrains.django.ref.DjangoViewReferenceQuickFixProvider"/>
     <runnableUnitTestFilter implementation="com.jetbrains.django.testRunner.DjangoUnitTestFilter"/>
+    <unusedLocalFilter implementation="com.jetbrains.django.codeInsight.DjangoUnusedLocalFilter"/>
 
     <!-- App Engine -->
     <typeProvider implementation="com.jetbrains.appengine.model.AppEngineTypeProvider"/>

python/src/com/jetbrains/python/inspections/PyUnusedLocalInspectionVisitor.java

@@ -10,6 +10,7 @@ import com.intellij.codeInspection.ProblemHighlightType;
 import com.intellij.codeInspection.ProblemsHolder;
 import com.intellij.openapi.application.ApplicationManager;
 import com.intellij.openapi.command.CommandProcessor;
+import com.intellij.openapi.extensions.Extensions;
 import com.intellij.openapi.project.Project;
 import com.intellij.psi.PsiElement;
 import com.intellij.psi.ResolveResult;
@@ -219,8 +220,17 @@ class PyUnusedLocalInspectionVisitor extends PyInspectionVisitor {
   }
 
   void registerProblems() {
+    final UnusedLocalFilter[] filters = Extensions.getExtensions(UnusedLocalFilter.EP_NAME);
     // Register problems
     for (PsiElement element : myUnusedElements) {
+      boolean ignoreUnused = false;
+      for (UnusedLocalFilter filter : filters) {
+        if (filter.ignoreUnused(element)) {
+          ignoreUnused = true;
+        }
+      }
+      if (ignoreUnused) continue;
+      
       // Local function
       if (element instanceof PyFunction){
         registerWarning(((PyFunction)element).getNameIdentifier(),

python/src/com/jetbrains/python/inspections/UnusedLocalFilter.java

@@ -0,0 +1,13 @@
+package com.jetbrains.python.inspections;
+
+import com.intellij.openapi.extensions.ExtensionPointName;
+import com.intellij.psi.PsiElement;
+
+/**
+ * @author yole
+ */
+public interface UnusedLocalFilter {
+  ExtensionPointName<UnusedLocalFilter> EP_NAME = ExtensionPointName.create("Pythonid.unusedLocalFilter");
+
+  boolean ignoreUnused(PsiElement local);
+}