diff -r 7eba8f83129b -r e7aa113b14f7 mercurial/wireprotov1peer.py
--- a/mercurial/wireprotov1peer.py	Wed Aug 01 12:57:15 2018 -0700
+++ b/mercurial/wireprotov1peer.py	Wed Aug 01 13:00:45 2018 -0700
@@ -497,7 +497,7 @@
     def between(self, pairs):
         batch = 8 # avoid giant requests
         r = []
-        for i in xrange(0, len(pairs), batch):
+        for i in pycompat.xrange(0, len(pairs), batch):
             n = " ".join([wireprototypes.encodelist(p, '-')
                           for p in pairs[i:i + batch]])
             d = self._call("between", pairs=n)