# HG changeset patch
# User Gregory Szorc <gregory.szorc@gmail.com>
# Date 2016-06-25 20:52:46
# Node ID 30789efb1e5ead5f357fd079f04664295a42860d
# Parent  47fb4beb992bdb5d832677ed68fb673b94a1a1e7

mdiff: remove use of __slots__

The use of __slots__ was added way back in 2006 in 4ec58b157265.
__slots__ isn't necessary for this class.

diff --git a/mercurial/mdiff.py b/mercurial/mdiff.py
--- a/mercurial/mdiff.py
+++ b/mercurial/mdiff.py
@@ -58,10 +58,8 @@ class diffopts(object):
         'upgrade': False,
         }
 
-    __slots__ = defaults.keys()
-
     def __init__(self, **opts):
-        for k in self.__slots__:
+        for k in self.defaults.keys():
             v = opts.get(k)
             if v is None:
                 v = self.defaults[k]