[Python-3000] Support for PEP 3131

["Martin v. Löwis"]

> In almost every programming situation I've been in,
> I've had to deal with environmental issues, even
> though my character set of choice has never been the
> primary issue.

People can certainly adjust to whatever challenges
technology confronts them with (some people can do
that easier, some have more difficulties). Still,
beautiful is better than ugly.

> I think there are things that can be done here, even
> if we make Python's default mode to be ascii-pure. 
> Regional distros can set the environment
> appropriately.  Python error messages about non-ascii
> characters can suggest how to enable the -U flag.  The
> Tokyo Python User's Group can educate programmers,
> etc.

Yes, but these are all work-arounds for an avoidable ugliness.

Regards,
Martin