[Python-bugs-list] isinstance(obj, extensionclass) should work? (PR#208)

[da@ski.org]

From: <claudius@accessoft.com>

> >>> foo
> <extension class __main__.foo at 1046c8>
> >>> isinstance(a, foo)
> Traceback (innermost last):
>   File "<stdin>", line 1, in ?
> TypeError: second argument must be a class
>
> Obviously, if obj.__class__ == extension class, shouldn't
isinstance(obj,
> extension class) work fine?  (Otherwise, changing a regular class
into an
> extension class would break code that uses isinstance.)

I believe this is fixed in the CVS tree.  Please try again with a
recent snapshot.

--david ascher