[Python-3000] PEP 3131 accepted

["Martin v. Löwis"]

> Perhaps a letter in the encoding declaration is non-ascii, nullifying
> the encoding enforcement and allowing a cyrillic 'a' in  allowed = 0?

I see. Of course, if I receive a patch where one of the lines changed
is the coding declaration, and there is no apparent difference between
the old and the new declaration, I would become cautious, wondering
what's going on.

Regrds,
Martin