Issue #19143: platform module now reads Windows version from kernel32.dll to avoid compatibility shims.

Issue #19143: platform module now reads Windows version from kernel32.dll to avoid compatibility shims.

Also, properly skip the test_nested_optimization test for partial subclasses
and add a test for the suggested usage.

Change destination to help.html.  Adjust NEWS entries.

Change destination to help.html.  Adjust NEWS entries.

The proactor event loop requires also to mock loop._stop_serving.

ssl.SSLContext() does not always disable compression. Fix unit test.

sequence of strings. Patch written by Yann Sionneau.

This info is required on Python 3.5 and newer to get specific information on
the SSL object, like getting the binary peer certificate (instead of getting
it as text).

of catching socket.EAI_NODATA error which doesn't exist on FreeBSD.

above "What's New and 0 lines above "Release date".  Remove most old headers
for non-final releases (they currently do not get carried forward.

above "What's New and 0 lines above "Release date".  Remove most old headers
for non-final releases (they currently do not get carried forward.

threading and multiprocessing modules.

In multiprocessing, the name of the first parameter of the acquire methods is
"block", but "blocking" in threading.

This commit also improves documentation of Lock and RLock.

Patch by Davin Potts.

threading and multiprocessing modules.

In multiprocessing, the name of the first parameter of the acquire methods is
"block", but "blocking" in threading.

This commit also improves documentation of Lock and RLock.

Patch by Davin Potts.

Patch by Bar Harel.