C API: how to tell if x is a new style instance?
fuf at mageo.cz
Thu Jan 29 10:50:50 CET 2004
Mike C. Fletcher wrote:
>Well, I don't actually know how to check for the spiritual state of a
>new-style class, but here's how to tell if an instance is an instance of
>a new-style class:
> * Note that a new-style class is a sub-class of type, while
> old-style classes are not
> * Check if isinstance( instance.__class__, type )
> * <Insert mystical spiritual damnedness check here>
ahh - it helped. thank you!
but, so it means that PyType_Check() doesn't work for new style
classes' instances? it returns 0 but i understood from the
documentation that it should return 1:
int PyType_Check(PyObject *o)
Returns true if the object o is a type object, including instances
of types derived from the standard type object. Returns false in
all other cases.
fuf (fuf at mageo.cz)
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