"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.

Patch by Christie Wilson.

Patch by Neil Girdhar.

instead of types={'type'} to specify the types the converter accepts.