--- a/mercurial/templatekw.py	Fri Jun 23 10:59:05 2017 -0700
+++ b/mercurial/templatekw.py	Thu Jun 22 01:29:07 2017 +0530
@@ -623,7 +623,7 @@
     ctx = args['ctx']
     pctxs = scmutil.meaningfulparents(repo, ctx)
     # ifcontains() needs a list of str
-    prevs = [pycompat.bytestr(p.rev()) for p in pctxs]
+    prevs = ["%d" % p.rev() for p in pctxs]
     parents = [[('rev', p.rev()),
                 ('node', p.hex()),
                 ('phase', p.phasestr())]
@@ -653,7 +653,7 @@
     args = pycompat.byteskwargs(args)
     repo = args['ctx'].repo()
     # ifcontains() needs a list of str
-    revs = [pycompat.bytestr(r) for r in revs]
+    revs = ["%d" % r for r in revs]
     f = _showlist(name, revs, args)
     return _hybrid(f, revs,
                    lambda x: {name: x, 'ctx': repo[int(x)], 'revcache': {}},