close files after comparing them
diff --git a/Lib/filecmp.py b/Lib/filecmp.py
index 0b7ce16..a2266d8 100644
--- a/Lib/filecmp.py
+++ b/Lib/filecmp.py
@@ -11,6 +11,7 @@
import os
import stat
+import contextlib
from itertools import ifilter, ifilterfalse, imap, izip
__all__ = ["cmp","dircmp","cmpfiles"]
@@ -62,15 +63,14 @@
def _do_cmp(f1, f2):
bufsize = BUFSIZE
- fp1 = open(f1, 'rb')
- fp2 = open(f2, 'rb')
- while True:
- b1 = fp1.read(bufsize)
- b2 = fp2.read(bufsize)
- if b1 != b2:
- return False
- if not b1:
- return True
+ with contextlib.nested(open(f1, 'rb'), open(f2, 'rb')) as (fp1, fp2):
+ while True:
+ b1 = fp1.read(bufsize)
+ b2 = fp2.read(bufsize)
+ if b1 != b2:
+ return False
+ if not b1:
+ return True
# Directory comparison class.
#