# HG changeset patch
# User Alex Gaynor <alex.gaynor@gmail.com>
# Date 2017-08-23 01:09:08
# Node ID 8d75b9effa070362969d1f9acd3ac1c5948d8b76
# Parent  6a49c74b1e8f4a1949cfd44562c83b2160ff942d

bundle2: fixed usage of an attribute that was removed in py3k

Differential Revision: https://phab.mercurial-scm.org/D482

diff --git a/mercurial/bundle2.py b/mercurial/bundle2.py
--- a/mercurial/bundle2.py
+++ b/mercurial/bundle2.py
@@ -587,7 +587,7 @@ class bundle20(object):
         """add a stream level parameter"""
         if not name:
             raise ValueError('empty parameter name')
-        if name[0] not in string.letters:
+        if name[0] not in pycompat.bytestr(string.ascii_letters):
             raise ValueError('non letter first character: %r' % name)
         self._params.append((name, value))
 
@@ -765,7 +765,7 @@ class unbundle20(unpackermixin):
         """
         if not name:
             raise ValueError('empty parameter name')
-        if name[0] not in string.letters:
+        if name[0] not in pycompat.bytestr(string.ascii_letters):
             raise ValueError('non letter first character: %r' % name)
         try:
             handler = b2streamparamsmap[name.lower()]