# HG changeset patch
# User Benjamin Peterson <benjamin@python.org>
# Date 2018-12-14 07:20:28
# Node ID 038108a9811c472d38046adab8dba7bcac522140
# Parent  6f2510b581a0955b71f79578af16634ecdf0305e

upgrade: correct implementation of improvement.__ne__

The "not" operator binds more closely than "==":
>>> not False == False
False

diff --git a/mercurial/upgrade.py b/mercurial/upgrade.py
--- a/mercurial/upgrade.py
+++ b/mercurial/upgrade.py
@@ -142,7 +142,7 @@ class improvement(object):
         return self.name == other.name
 
     def __ne__(self, other):
-        return not self == other
+        return not (self == other)
 
     def __hash__(self):
         return hash(self.name)