# HG changeset patch
# User Yuya Nishihara <yuya@tcha.org>
# Date 2017-09-03 08:03:23
# Node ID e18119b1ad5d873a98c201639481401934b2e084
# Parent  6d21737c35bfa5b008aff546fe71671f494369b5

py3: fix mixed bytes/unicode in revsetlang._aliassyminitletters

diff --git a/mercurial/revsetlang.py b/mercurial/revsetlang.py
--- a/mercurial/revsetlang.py
+++ b/mercurial/revsetlang.py
@@ -473,7 +473,7 @@ def optimize(tree):
 
 # the set of valid characters for the initial letter of symbols in
 # alias declarations and definitions
-_aliassyminitletters = _syminitletters | set(pycompat.sysstr('$'))
+_aliassyminitletters = _syminitletters | {'$'}
 
 def _parsewith(spec, lookup=None, syminitletters=None):
     """Generate a parse tree of given spec with given tokenizing options