[EMAIL PROTECTED] writes: > i extract class object from an instance of NodeList (minicompat.py) > like so > PyObject *pclass = PyObject_GetAttrString( nodelistinsance, > "__class__"); > but > PyObject_GetAttrString(pclass, "__len__") > returns NULL.
Are you sure about that? >>> import xml.dom.minicompat >>> xml.dom.minicompat.NodeList <class 'xml.dom.minicompat.NodeList'> >>> xml.dom.minicompat.NodeList.__len__ <slot wrapper '__len__' of 'list' objects> >>> xml.dom.minicompat.NodeList() [] >>> _.__class__ <class 'xml.dom.minicompat.NodeList'> >>> _.__len__ <slot wrapper '__len__' of 'list' objects> > to explain that endless loop i have to assume __len__ is defined > in the NodeList base(list that is) > but i don't see __len__ anywhere in listobject.c!!! The list object has __len__: >>> list.__len__ <slot wrapper '__len__' of 'list' objects> It just gets defined in a different way, through a C structure of function pointers defining sequence operations. (See where list_length is defined and used.) -- http://mail.python.org/mailman/listinfo/python-list
