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

Modules/posixmodule.c: In function 'posix_sendfile':
Modules/posixmodule.c:7700: warning: ISO C90 forbids mixed declarations and code

Replace malloc() with PyMem_Malloc() when the GIL is held, or with
PyMem_RawMalloc() otherwise.

* Replace malloc() with PyMem_RawMalloc()
* Replace PyMem_Malloc() with PyMem_RawMalloc() where the GIL is not held.
* _Py_char2wchar() now returns a buffer allocated by PyMem_RawMalloc(), instead
  of PyMem_Malloc()

PyMem_Malloc() or PyObject_Malloc().

For example, PyCFunction_Fini() calls PyObject_GC_Del() which calls
PyObject_FREE().

* Add comment explaining the endpoint checks
* Only do the checks in a debug build
* Simplify newblock() to only require a length argument
  and leave the link updates to the calling code.
* Also add comment for the freelisting logic.