r58207 and r58247 patch logic is reversed.  I noticed this when I
tried to use urllib to retrieve a file which required auth.

Fix that and add a test for 401 error to verify.

This improves compatibility with Tcl 8.5, which would
otherwise return textindex objects.

Fixes Tk issue #1851526

to use of datetime.datetime.now() instead of utcnow() for comparison.
(I think the test can still fail if it's executed pretty much *at*
new year's eve, but that's not worth fixing.)

Integrated bdist_wininst into PCBuild9 directory

Improve docs for itertools.groupby().  The use of xrange(0) to create a unique object is less obvious than object().

Also fix the test by having the test classes inherit from object.

Are the getter/setter/deleter attributes supposed to be able to chain?  As of
right now they can't as the property tries to call what the property returns,
which is another property when they are chained.

line).

Will backport.

using a trick found in ifilter().
Feel free to backport to 2.5.

Still need tests for warn_explicit and simplefilter.

This changes the rules for when __hash__ is inherited slightly,
by allowing it to be inherited when one or more of __lt__, __le__,
__gt__, __ge__ are overridden, as long as __eq__ and __ne__ aren't.