type.  Coercion for arithmetic operations was already removed in
r78280, but that commit didn't remove coercion for rich comparisons.

pipe communication into a loop to retry in case a buildbot gets even slower.

gaierror(EAI_NODATA)

timedelta from date or datetime falls outside of the MINYEAR:MAXYEAR range.

using unittest.skipIf decorator.

including Windows CE.

error handler, instead of writing to the C stderr file in utf-8

ports of IronPython tests.  Thanks Gregory Nofi.

unquote is duplicated in the two files to avoid a circular reference.
(This is fixed in Python3.)  Updates keep getting made to the public unquote
without fixing the urlparse one, however, so this fix syncs the two
and adds a comment to both to make sure changes are applied to both.

ERROR_MORE_DATA, requiring another call to get the remaining data.

Patch by Daniel Stutzbach

#8016: add the CP858 codec (approved by Benjamin).  (Also add CP720 to the tests, it was missing there.)

Fix default value for version help. Approved by Benjamin on python-dev: http://mail.python.org/pipermail/python-dev/2010-May/100231.html

argparse documentation updates (including updates to optparse and getopt documentation that were promised in the PEP)