Fix nit.

rhettinger · rhettinger · commit 2df393cc5103 · 2011-04-12T18:57:55.000-07:00
diff --git a/Lib/idlelib/EditorWindow.py b/Lib/idlelib/EditorWindow.py
@@ -60,7 +60,7 @@ def _find_module(fullname, path=None):
             pass
         else:
             file = None
-            descr = os.path.splitext(filename), None, imp.PY_SOURCE
+            descr = os.path.splitext(filename)[1], None, imp.PY_SOURCE
     return file, filename, descr
 
 class EditorWindow(object):
