use multi-with syntax

diff --git a/Lib/filecmp.py b/Lib/filecmp.py
index a2266d8d425faf05f59002d00432a29c42b07bb8..89a48359a2f4f14ca814a626ad638e7c20714add 100644 (file)
--- a/Lib/filecmp.py
+++ b/Lib/filecmp.py
@@ -11,7 +11,6 @@ Functions:
 
 import os
 import stat
-import contextlib
 from itertools import ifilter, ifilterfalse, imap, izip
 
 __all__ = ["cmp","dircmp","cmpfiles"]
@@ -63,7 +62,7 @@ def _sig(st):
 
 def _do_cmp(f1, f2):
     bufsize = BUFSIZE
-    with contextlib.nested(open(f1, 'rb'), open(f2, 'rb')) as (fp1, fp2):
+    with open(f1, 'rb') as fp1, open(f2, 'rb') as fp2:
         while True:
             b1 = fp1.read(bufsize)
             b2 = fp2.read(bufsize)