--- a/mercurial/config.py	Thu Sep 07 22:36:54 2017 +0900
+++ b/mercurial/config.py	Sun Sep 03 14:32:11 2017 +0900
@@ -183,7 +183,7 @@
 def parselist(value):
     """parse a configuration value as a list of comma/space separated strings
 
-    >>> parselist('this,is "a small" ,test')
+    >>> parselist(b'this,is "a small" ,test')
     ['this', 'is', 'a small', 'test']
     """