shangyu yushang at
Mon Mar 11 23:22:24 CET 2013

发件人: "shangyu" <yushang at>
发送时间: ‎2013/‎3/‎12 0:20
收件人: "core-mentorship at" <core-mentorship at>
主题: [Core-mentorship] metatype

Hi dear all,
I have following Python code
class mydict(dict):
    def __init__(self):
I wonder how this new type get created . What is the type of metatype in the following line ?
type = (PyTypeObject *)metatype->tp_alloc(metatype, nslots);
(line 2296 of typeobject.c Python2.7.3 source code)
It seems PyDict_Type . If so , how do I expect the tp_alloc will return a PyTypeObject object ? Maybe I've missed something ?
Many thanks!!!
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