From 78f43a73cb9f44e113730fd74b98d681843c8398 Mon Sep 17 00:00:00 2001
From: Victor Stinner <victor.stinner@haypocalc.com>
Date: Wed, 29 Sep 2010 01:24:59 +0000
Subject: [PATCH] linecache.updatecache() returns an empty list on error

lines variable was not set on IOError
---
 Lib/linecache.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/Lib/linecache.py b/Lib/linecache.py
index ef2adf5369..f0bb83d1d8 100644
--- a/Lib/linecache.py
+++ b/Lib/linecache.py
@@ -128,7 +128,7 @@ def updatecache(filename, module_globals=None):
         with open(fullname, 'r', encoding=coding) as fp:
             lines = fp.readlines()
     except IOError:
-        pass
+        lines = []
     if lines and not lines[-1].endswith('\n'):
         lines[-1] += '\n'
     size, mtime = stat.st_size, stat.st_mtime
-- 
2.49.0