Some of the details of comparing mixed types were incorrect or ambiguous.
NotImplemented is only relevant at a lower level than the Expressions
chapter. Added details of comparing range() objects, and default behaviour
and consistency suggestions for user-defined classes. Patch from Andy Maier.

so it is not triggered on import.  The problem is creation of a now-unused
instance "helpDialog = HelpDialog()", left for back compatibility.
So instead trigger the warning when that instance or another is used.

This restores the ability to write encoding names in uppercase like "UTF-8",
which worked in Python 2.

Patch by Mark Roseman.

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).