New submission from Ralf Schmitt <[EMAIL PROTECTED]>:
The following short program raises an exception:
import UserList
class C:
pass
print isinstance(C, UserList.UserList)
---------
exception:
Traceback (most recent call last):
File "t.py", line 6, in <module>
print isinstance(C, UserList.UserList)
File "/home/ralf/py26/lib/python2.6/abc.py", line 120, in
__instancecheck__
subclass = instance.__class__
AttributeError: class C has no attribute '__class__'
If I use a new style class it works.
----------
components: Interpreter Core
messages: 63630
nosy: schmir
severity: normal
status: open
title: abc.py:ABCMeta.__instancecheck__ broken for old style classes
type: crash
versions: Python 2.6
__________________________________
Tracker <[EMAIL PROTECTED]>
<http://bugs.python.org/issue2319>
__________________________________
_______________________________________________
Python-bugs-list mailing list
Unsubscribe:
http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
