From 0d0d5d84b5d2953dd0eeb412585599b65e977522 Mon Sep 17 00:00:00 2001
From: Tarek Ziade <tarek@ziade.org>
Date: Tue, 21 Feb 2012 10:36:55 +0100
Subject: [PATCH] make sure skip_warning works with no files

---
 flake8/util.py | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/flake8/util.py b/flake8/util.py
index 89640bb..2bcfa66 100644
--- a/flake8/util.py
+++ b/flake8/util.py
@@ -1,8 +1,11 @@
 import re
+import os
 
 
 def skip_warning(warning):
     # XXX quick dirty hack, just need to keep the line in the warning
+    if not os.path.isfile(warning.filename):
+        return False
     line = open(warning.filename).readlines()[warning.lineno - 1]
     return skip_line(line)