--- a/___instancecheck__	Sat Jun 29 15:28:52 2013 +0200
+++ b/___instancecheck__	Sat Jun 29 15:29:15 2013 +0200
@@ -3,14 +3,4 @@
     if hasattr(thing, '__instancecheck__'):
         return thing.__instancecheck__(thing, classinfo)
     return issubclass(thing.__class__, classinfo)
-
-def issubclass(cls, classinfo):
-    if hasattr(cls, '__subclasscheck__'):
-        return cls.__subclasscheck__(cls, classinfo)
-    if classinfo.__class__ != tuple:
-        classinfo = (classinfo,)
-    for supeclass in search_classes(cls):
-        if superclass in classinfo:
-            return True
-    return False
 }}}
\ No newline at end of file