Use with statement where it improves the documentation (closes #10461)
diff --git a/Doc/library/difflib.rst b/Doc/library/difflib.rst
index a0afe81..505d308 100644
--- a/Doc/library/difflib.rst
+++ b/Doc/library/difflib.rst
@@ -750,8 +750,8 @@
# we're passing these as arguments to the diff function
fromdate = time.ctime(os.stat(fromfile).st_mtime)
todate = time.ctime(os.stat(tofile).st_mtime)
- fromlines = open(fromfile, 'U').readlines()
- tolines = open(tofile, 'U').readlines()
+ with open(fromlines) as fromf, open(tofile) as tof:
+ fromlines, tolines = list(fromf), list(tof)
if options.u:
diff = difflib.unified_diff(fromlines, tolines, fromfile, tofile,