From f9a46d7bc9b321214f75c2e5fa8f416405a59ed9 Mon Sep 17 00:00:00 2001
From: Thomas Bartelmess <Thomas Bartelmess>
Date: Tue, 25 Dec 2012 20:37:39 -0500
Subject: [PATCH] Made dev server autoreloader ignore filenames reported as
 None.

Useful under Jython. Thanks Thomas Bartelmess for the report and patch.

Ref #9589.
---
 django/utils/autoreload.py | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/django/utils/autoreload.py b/django/utils/autoreload.py
index 617fc9da7d..cc9cc1304a 100644
--- a/django/utils/autoreload.py
+++ b/django/utils/autoreload.py
@@ -63,6 +63,8 @@ def code_changed():
         except AttributeError:
             pass
     for filename in filenames + _error_files:
+        if not filename:
+            continue
         if filename.endswith(".pyc") or filename.endswith(".pyo"):
             filename = filename[:-1]
         if filename.endswith("$py.class"):