[Python-Dev] When tp_clear returns non-zero? (original) (raw)

Serhiy Storchaka storchaka at gmail.com
Mon May 28 08:17:45 EDT 2018


The tp_clear field of PyTypeObject has type inquiry. It is a pointer to a function that takes PyObject * and return int.

typedef int (*inquiry)(PyObject *);

I'm interesting what the result of this function means. In what cases it can return non-zero, and can it set an exception?

Currently tp_clear() is called in a single place, and its result is ignored. All tp_clear implementations in the stdlib always return 0.



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