C API for new-style classes

[Eric Wilhelm]

Hi,

By new-style classes, I'm referring to the changes which came into 2.2 as
a result of PEP 252 and 253.  I discovered this problem when trying to
use the Perl Inline::Python module with a python class that was
inheriting from the new builting 'object' class like so:

class MyClass(object):

The problem is in detecting that this class should be treated as a class
from C.  With old-style classes, PyClass_Check() returns true, but it
doesn't work with new-style classes.  With those, apparently we have to
use PyType_Check(), but I cannot find this in the extension
documentation.

Another problem comes in identifying instances of this type of
type-class, where PyInstance_Check() no longer returns true.

Does anyone know of any documentation for the API for new-style classes?
(It must work somehow or the python interpreter couldn't do it.)

Thanks,
Eric