python3 - the hardest hello world ever ?

["Martin v. Löwis"]

> What defines me as latin1-user?

That your locale is based on Latin-1, e.g. because it is a German
locale. How precisely that works depends on the operating system.

> So my system seems to be an ASCII system?

At least that's what Python determined. If Python couldn't have found
out that you usually use Latin-1, your system is misconfigured. If
Python could have found out, but failed to do so, it's a bug in Python.

Regards,
Martin