Issue #15022: Add pickle and comparison support to types.SimpleNamespace.
Issue #17170: speed up PyArg_ParseTuple[AndKeywords] a bit.
Merge
Issue #15022: Ensure all pickle protocols are supported.
Fixes a FileFinder docstring to reflect an old change.

That change was in 1db6553f3f8c.
Merge from 3.3
Eliminate unnecessary variable.
Set cache sizes to a power-of-two
merge
Issue #17215: Fix documentation misprints (patch by July Tikhonov)
Issue #17215: Fix documentation misprints (patch by July Tikhonov)