https://bugs.python.org/issue37364

test_gdb no longer fails if it gets an "unexpected" message on
stderr: it now ignores stderr. The purpose of test_gdb is to test
that python-gdb.py commands work as expected, not to test gdb.

This is to help prevent people from accidentally installing into the wrong Python interpreter if they are not aware of which Python interpreter `pip` points to.

Also, add a missing call to va_end() in PySys_Audit().

* Switch to officially supported curses from 3rd-party ASIS supported ncurses
* stop saying optional modules osaudiodev and spwd are missing on AIX

Patch by M.Felt

* Docs: Improved phrasing 

Removed usage of second person pronouns in the section and made the assumption of "uneasiness" in code style transition more neutral.

* Removed trailing whitespace on line 34

* Mention bpo of PyImport_Cleanup removal
* Fix bpo number of PyByteArray_Init removal

It was listed as `binaryfunc`. It should be `unaryfunc`.

* Mention issue in which ByByteArray_Init() has been removed.
* Fix typo

In pylifecycle.c: pass tstate argument, rather than interp argument,
to functions.

Add a missing single quote character in the documentation for `io.TextIOWrapper.reconfigure`.

* Rename PyImport_Cleanup() to _PyImport_Cleanup() and move it to the
  internal C API. Add 'tstate' parameters.
* Remove documentation of _PyImport_Init(), PyImport_Cleanup(),
  _PyImport_Fini(). All three were documented as "For internal use
  only.".

'\0' is the NUL byte not NULL.

* Add 'tstate' parameter to many internal import.c functions.
* _PyImportZip_Init() now gets 'tstate' parameter rather than
  'interp'.
* Add 'interp' parameter to _PyState_ClearModules() and rename it
  to _PyInterpreterState_ClearModules().
* Move private _PyImport_FindBuiltin() to the internal C API; add
  'tstate' parameter to it.
* Remove private _PyImport_AddModuleObject() from the C API:
  use public PyImport_AddModuleObject() instead.
* Remove private _PyImport_FindExtensionObjectEx() from the C API:
  use private _PyImport_FindExtensionObject() instead.

I didn't find any entries in the docs about these functions, so I just mentioned them, in "What's New".

* Add Include/cpython/import.h and Include/internal/pycore_import.h
  header files.
* Move _PyImport_ReInitLock() to the internal C API. Don't export the
  symbol anymore.

Tab now moves focus across and down for Help Source and Custom Run.

Also adds abalkin to CODEOWNERS for date and time related files.

For datetime.datetime.strptime(), the leading zero for some two-digit formats is optional.

This adds a footnote to the strftime/strptime documentation to reflect this fact, and adds some tests to ensure that it is true.

bpo-34903

default case ought to handle the "unexpected".