diff -r f3a1089654e3 -r 9b230a8e6008 mercurial/util.py
--- a/mercurial/util.py	Sat Oct 08 08:35:43 2016 -0400
+++ b/mercurial/util.py	Sat Oct 08 08:36:39 2016 -0400
@@ -60,7 +60,8 @@
     'socketserver',
     'xmlrpclib',
 ):
-    globals()[attr] = getattr(pycompat, attr)
+    a = pycompat.sysstr(attr)
+    globals()[a] = getattr(pycompat, a)
 
 # This line is to make pyflakes happy:
 urlreq = pycompat.urlreq