Patch by Andrew Rowe.

building the tuple (type, value, traceback) passed to the callback.

PyTuple_Pack() does crash if an argument is NULL.

addresses.

addresses.

in set2list()

Don't mark old extra memory dead before calling realloc(). realloc() can fail
and realloc() must not touch the original buffer on failure.

So mark old extra memory dead only on success if the new buffer did not move
(has the same address).

cases, so _PyUnicodeWriter_Dealloc() can be called after finish.

_PyBytes_Resize(&v, new_size) sets v to NULL on error, so v cannot be used
anymore. Replace "Py_DECREF(v); v = NULL;" with "Py_CLEAR(v);".

failure.

(MemoryError).

(MemoryError).

for a framework install, the python shared library is installed in
the frameworkinstallstructure target, not in altbininstall.

so _PyUnicodeWriter_Dealloc() can be called on the writer after finish.

(in load_args()), ex: MemoryError.

PyWeakref_NewRef() failure (ex: MemoryError).

PyUnicode_DecodeUTF8() failure (ex: MemoryError).

(MemoryError).

is negative

Replace strdup() with _PyMem_RawStrdup() or _PyMem_Strdup(), depending if the
GIL is held or not.

Issue #18227: pyexpat now uses a static XML_Memory_Handling_Suite. cElementTree uses the same approach since at least Python 2.6