# HG changeset patch
# User Pulkit Goyal <7895pulkit@gmail.com>
# Date 2017-12-28 23:57:00
# Node ID 2f123f309f617ff70a0951a9e2f633dc312db287
# Parent  72b91f905065c366e3a2ce3dcb9bb24ffd66b109

py3: slice on bytes instead of indexing

Indexing returns the ascii value on Python 3.

Differential Revision: https://phab.mercurial-scm.org/D1793

diff --git a/mercurial/mdiff.py b/mercurial/mdiff.py
--- a/mercurial/mdiff.py
+++ b/mercurial/mdiff.py
@@ -356,7 +356,7 @@ def _unidiff(t1, t2, opts=defaultopts):
             # the previous hunk context until we find a line starting with an
             # alphanumeric char.
             for i in xrange(astart - 1, lastpos - 1, -1):
-                if l1[i][0].isalnum():
+                if l1[i][0:1].isalnum():
                     func = ' ' + l1[i].rstrip()[:40]
                     lastfunc[1] = func
                     break