Roundup bug bites again.  Reposting via web:

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On Tue, May 25, 2010 at 5:35 PM, Brett Cannon <report@bugs.python.org> wrote:
>
> The singleton dislike from Antoine and me is that they are generally just not liked in the stdlib.
..
Thanks for the explanation.  I realize that I should not have used the
s-word. :-)  In fact I only wanted a module level constant utc = UTC()
and did not care much about other UTC class instances and whether any
are permitted or easy to create.

> .. so we need to go with what we consider best practice for Python since it will lead to much more use than pytz gets.
>
Well, the datetime module is not exactly the place you want to start
if you want to lead anyone to best Python practices. :-) (Just think
of datetime subclassing from date!)

> Now if a simple FixedOffsetTimeZone class was added and we just pre-populated the datetime module with a utc attribute that contained an
> instance of that class set to the proper values for UTC, that I could support without controversy.

This is exactly my preferred solution.