replace ``has_key`` method to ``in`` operator #9fix-has_key

1 files changed, 1 insertions, 1 deletions

diff --git a/paste/util/classinstance.py b/paste/util/classinstance.py
index ac2be3e..6436a44 100644
--- a/paste/util/classinstance.py
+++ b/paste/util/classinstance.py
@@ -24,7 +24,7 @@ class _methodwrapper(object):
         self.type = type
 
     def __call__(self, *args, **kw):
-        assert not kw.has_key('self') and not kw.has_key('cls'), (
+        assert 'self' not in kw and 'cls' not in kw, (
             "You cannot use 'self' or 'cls' arguments to a "
             "classinstancemethod")
         return self.func(*((self.obj, self.type) + args), **kw)