diff -r 7eba8f83129b -r e7aa113b14f7 mercurial/repair.py
--- a/mercurial/repair.py	Wed Aug 01 12:57:15 2018 -0700
+++ b/mercurial/repair.py	Wed Aug 01 13:00:45 2018 -0700
@@ -24,6 +24,7 @@
     exchange,
     obsolete,
     obsutil,
+    pycompat,
     util,
 )
 from .utils import (
@@ -70,7 +71,7 @@
     """find out the filelogs affected by the strip"""
     files = set()
 
-    for x in xrange(striprev, len(repo)):
+    for x in pycompat.xrange(striprev, len(repo)):
         files.update(repo[x].files())
 
     return sorted(files)
@@ -199,7 +200,7 @@
                     repo.file(fn).strip(striprev, tr)
                 tr.endgroup()
 
-                for i in xrange(offset, len(tr.entries)):
+                for i in pycompat.xrange(offset, len(tr.entries)):
                     file, troffset, ignore = tr.entries[i]
                     with repo.svfs(file, 'a', checkambig=True) as fp:
                         fp.truncate(troffset)