Prepare for cross-linking with the new .. glossary:: directive.

may not compare equal (due to the possibility of multiple representations).

better error message, more descriptive. (bug #1770009)

recently removed).

against a SimpleXMLRPCServer in a separate thread.  Because of
problems with WSAEWOULDBLOCK (error 10035) being raised by the server
on Windows, these new tests are skipped on win32. [GSoC - Alan McIntyre]

test.test_support.catch_warning is more full-featured and provides the same
functionality.

Since guard_warnings_filter was added in 2.6 there is no
backwards-compatibility issues.

in PythonCmd().

Fixes #1730114.

The value is always written to the returned pointer if getting it was
successful, even if a warning causes an error. (This probably doesn't matter
as the caller will probably discard the value.)

Will backport.

GB18030 extension in encoding. (bug reported by Bjorn Stabell)