I think it's probably line 2649 in typeobject.c, in type_new():
type->tp_alloc = PyType_GenericAlloc;
On Sun, Feb 7, 2016 at 5:58 AM, Randy Eels
Hi everyone,
I've a question about the implementation of the `type` builtin (in Python 3.5).
In Objects/typeobject.c, the `tp_alloc` slot of PyType_Type gets set to 0. However, I can see (using gdb) that it later gets assigned to `&PyType_GenericAlloc`. I'd argue that this makes sense because, in `type_new`, there is a line where that member function gets called without previously checking whether that member points to something:
``` /* Allocate the type object */ type = (PyTypeObject *)metatype->tp_alloc(metatype, nslots); ```
Yet, I can't seem to understand where and when does the `tp_alloc` slot of PyType_Type get re-assigned to PyType_GenericAlloc. Does that even happen? Or am I missing something bigger?
And, just out of further curiosity, why doesn't the aforementioned slot get initialised to `PyType_GenericAlloc` in the first place?
Thanks a lot.
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