Python checking for None/Null values

[Fuzzydave]

> Note: sometimes having a clean and readable program is better than
> having a running program that you can't read, because you can fix the
> the first one, and it can teach you something.
>
> Bye,
> bearophile

Thanks for your help and suggestions i'll give them a shot.

Unfortunatly when working with 6 years of other peoples legacy code
(esspecially *this* code) it sometimes looks like it was specifiyed in
the
project spec *not* to be readable :)

But I will endevour to change that while working with it myself ;)

David P