mercurial/util.py

--- a/mercurial/util.py	Sat Jun 24 19:55:41 2017 +0530
+++ b/mercurial/util.py	Sat Jun 24 19:57:50 2017 +0530
@@ -1168,7 +1168,7 @@
 
     return hardlink, num
 
-_winreservednames = '''con prn aux nul
+_winreservednames = b'''con prn aux nul
     com1 com2 com3 com4 com5 com6 com7 com8 com9
     lpt1 lpt2 lpt3 lpt4 lpt5 lpt6 lpt7 lpt8 lpt9'''.split()
 _winreservedchars = ':*?"<>|'