Issue #9586: Redefine SEM_FAILED on MacOSX to keep compiler happy.
Update copyright dates in Mac plists.
Issue #16819: IDLE method completion now correctly works for bytes literals.
Issue #16541: tk_setPalette() now works with keyword arguments.
Added a test for tk_setPalette().
Issue #9644: Fix the encoding used by os.statvfs(): use the filesystem encoding
with the surrogateescape error handler, instead of UTF-8 in strict mode.
configparser: preserve section order when using `__setitem__` (issue #16820)
Misc/NEWS updated to tell about #16820
Merge heads
Fix incorrect grammar in Misc/NEWS.
Fix method name in documentation (__setstate__ --> __getstate__)