--- /home/cscircles/temp/Python-3.3.0/Lib/importlib/_bootstrap.py       2012-09-29 04:00:29.000000000 -0400
+++ _bootstrap.py       2012-12-19 00:34:20.000000000 -0500
@@ -1390,8 +1390,8 @@
         path = self.path
         try:
             contents = _os.listdir(path)
-        except FileNotFoundError:
-            # Directory has been removed since last import
+        except (FileNotFoundError, PermissionError):
+            # Directory has been removed since last import, or inaccessible
             contents = []
         # We store two cached versions, to handle runtime changes of the
         # PYTHONCASEOK environment variable.