Fix functools.partialmethod docs and __all__
Issue #19085: Fix Tkinter tests on Tk 8.5 with patchlevel < 8.5.12.
Issue #19085: Fix Tkinter tests on Tk 8.5 with patchlevel < 8.5.12.
Issue #19085: Fix running test_ttk_textonly on displayless host.
Issue #19085: Fix running test_ttk_textonly on displayless host.
asyncio: Locks improvements by Arnaud Faure: better repr(), change Conditio\
n structure.
asyncio: Refactor SIGCHLD handling. By Anthony Baire.
Issue #19397: test_pydoc now works with -S (help not added to builtins).
Patch by Serhiy Storchaka and Vajrasky Kok.
Merge with 3.3