Closes issue #22906.

Patch from Marc-Andre Lemburg.

any keyword arguments.  Previously it silently ignored them.

Also: merge related change from 3.4, also reported on Issue #20274.

METH_VARARGS methods on _sqlite.Connection.

anywhere in the name of the current directory.

"format units".  Updated the documentation to match.

Basically, s/thread/coroutine/.

assertWarnsRegex() checks are not longer successful if the callable is None.

Added tests for assertRaises().

assertWarnsRegex() checks are not longer successful if the callable is None.

Added tests for assertRaises().

Tkinter's getdouble() now supports any numbers (in particular int).

Parsed value should be bytes, not general robuffer, this is required in other
places.

during closing expatreader.  Fixed a regression introduced in issue #23865.

during closing expatreader.  Fixed a regression introduced in issue #23865.