--- a/hgext3rd/topic/__init__.py	Fri Mar 18 15:03:40 2016 +0000
+++ b/hgext3rd/topic/__init__.py	Sat Mar 19 14:09:59 2016 -0700
@@ -10,7 +10,6 @@
 This is sort of similar to a bookmark, but it applies to a whole
 series instead of a single revision.
 """
-import functools
 import contextlib
 import re