Tuple arg for "classinfo" in isinstance: what does it mean?

[Martin v. Löwis]

> I'm an old fart, but I can learn new tricks. I think I would still
prefer
> to have a complete definition in the ref manual, as I do RTFM all the
> time when programming in python, but this will do in cases of
> ambiguity.

Please submit a bug report to sf.net/projects/python. If you can,
contribute a patch.

Regards,
Martin