Chris Withers added the comment:
Some background: I hit this problem when adding Python 3 compatibility
to one of my libraries, where I had the following code:
from types import ClassType
...
class_ = ClassType(n, (sometype, ), dict(class_attr1='foo',
class_attr2='bar')
It wasn't at all clear how to port this to Python 3, given that
ClassType was gone.
types.new_class looks fair game, but the help is not exactly helpful:
new_class(name, bases=(), kwds=None, exec_body=None)
Create a class object dynamically using the appropriate metaclass.
No indication there as to what type should be passed for kwds or exec_body.
I guessed and, by the sound of it, guessed wrong.
I'd certainly agree that the error message is very misleading.
cheers,
Chris
----------
_______________________________________
Python tracker <[email protected]>
<http://bugs.python.org/issue17179>
_______________________________________
_______________________________________________
Python-bugs-list mailing list
Unsubscribe:
http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
