Python3 - How do I import a class from another file

[R.Wieser]

DL,

> Some of this you will know. (Hopefully) some will be 'new':

Some of it is known to me, and indeed I do hope that there will be new stuff 
in there too.  Its why I took up Python. :-)

Thanks for the explanation (including the aliassing I wasn't aware of) and 
the links.

Regards,
Rudy Wieser