From 4e3b4a7715e23df67303b2edbdd85ba3c0d77bf8 Mon Sep 17 00:00:00 2001
From: "Ilya.Kazakevich" <Ilya.Kazakevich@jetbrains.com>
Date: Tue, 11 Feb 2014 15:47:02 +0400
Subject: [PATCH] Fix "DummyHolder cannot be cast to
 com.jetbrains.python.psi.PyFile"

---
 .../com/jetbrains/python/psi/impl/PyCallExpressionHelper.java | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/python/src/com/jetbrains/python/psi/impl/PyCallExpressionHelper.java b/python/src/com/jetbrains/python/psi/impl/PyCallExpressionHelper.java
index bd33be42b4af..19fa72a1a97b 100644
--- a/python/src/com/jetbrains/python/psi/impl/PyCallExpressionHelper.java
+++ b/python/src/com/jetbrains/python/psi/impl/PyCallExpressionHelper.java
@@ -507,7 +507,9 @@ public class PyCallExpressionHelper {
                 }
               }
             }
-            else if (((PyFile)call.getContainingFile()).getLanguageLevel().isPy3K() && containingClass != null) {
+            else if ((call.getContainingFile() instanceof PyFile) &&
+                     ((PyFile)call.getContainingFile()).getLanguageLevel().isPy3K() &&
+                     (containingClass != null)) {
               return new Maybe<PyType>(getSuperClassUnionType(containingClass));
             }
           }