closing the window.

particular accepts writable memoryview).

conditional group references are used in lookbehind assertions in regular
expressions.

consumed too much memory and raised SystemError or MemoryError.
Original patch by Aleksi Torhamo.

flush() was not called in close() if closefd=False.

docstrings.

Initial patch by Yuyang Guo.

overflows.  Added few missed PyErr_NoMemory().

module.  Original patch by Claudiu Popa.

when run as root.  Extended testing with /dev/full.
Based on patch by Daniel Dickman.

and email.test.

Patch by David Edelsohn.

the multiprocessing module.

posixpath.expandvars().  Fixed all os.path implementations on
unicode-disabled builds.

Fixes a regression in issue #22765.  Patch by Vinson Lee.

(currently only used for builds with <= 10.5 deployment targets)

values (like 0.9.8zc).

Used PyMem_New to check overflow.