[Andreas Jung]
> I remember that Guido (?) has written a minimal datetime module
> for Python to be used in Zope3 or so. Where can I find the sources?
The Wiki is
http://www.zope.org/Members/fdrake/DateTimeWiki/FrontPage
and "Prototype Implementation in Python" there points to the CVS source.
Fred Drake is working on the C implementation as time allows.