[issue3329] API for setting the memory allocator used by Python

[STINNER Victor]

STINNER Victor added the comment:

To be exhaustive, another patch should be developed to replace all calls for malloc/realloc/free by PyMem_Malloc/PyMem_Realloc/PyMem_Free. PyObject_Malloc() is still using mmap() or malloc() internally for example.

Other examples of functions calling malloc/realloc/free directly: _PySequence_BytesToCharpArray(), block_new() (of pyarena.c), find_key() (of thread.c), PyInterpreterState_New(), win32_wchdir(), posix_getcwd(), Py_Main(), etc.

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Python tracker <report at bugs.python.org>
<http://bugs.python.org/issue3329>
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