From: Raymond Hettinger <python@rcn.com>
Date: Sat, 9 Apr 2011 20:00:17 +0000 (-0700)
Subject: Replace constant tuple with constant set.
X-Git-Tag: v3.3.0a1~2635
X-Git-Url: http://git.ipfire.org/gitweb.cgi?a=commitdiff_plain;h=c6a726d061023abf0fdf7af41a3602b8f405d303;p=thirdparty%2FPython%2Fcpython.git

Replace constant tuple with constant set.
---

diff --git a/Lib/difflib.py b/Lib/difflib.py
index 003e72e28363..27c73d4e0305 100644
--- a/Lib/difflib.py
+++ b/Lib/difflib.py
@@ -1267,7 +1267,7 @@ def context_diff(a, b, fromfile='', tofile='',
             yield '*** %d,%d ****%s' % (group[0][1]+1, group[-1][2], lineterm)
         else:
             yield '*** %d ****%s' % (group[-1][2], lineterm)
-        visiblechanges = [e for e in group if e[0] in ('replace', 'delete')]
+        visiblechanges = [e for e in group if e[0] in {'replace', 'delete'}]
         if visiblechanges:
             for tag, i1, i2, _, _ in group:
                 if tag != 'insert':
@@ -1278,7 +1278,7 @@ def context_diff(a, b, fromfile='', tofile='',
             yield '--- %d,%d ----%s' % (group[0][3]+1, group[-1][4], lineterm)
         else:
             yield '--- %d ----%s' % (group[-1][4], lineterm)
-        visiblechanges = [e for e in group if e[0] in ('replace', 'insert')]
+        visiblechanges = [e for e in group if e[0] in {'replace', 'insert'}]
         if visiblechanges:
             for tag, _, _, j1, j2 in group:
                 if tag != 'delete':