Objects, lists and assigning values

[7stud]

On Apr 7, 2:52 pm, Manuel Graune <manuel.gra... at koeln.de> wrote:
> "7stud" <bbxx789_0... at yahoo.com> writes:
>
> > What book are you reading?
>
> I worked my way through most of the online-docs. A bit to casual
> obviously.
>

See the online tutorial's section on default function arguments here:

http://docs.python.org/tut/node6.html#SECTION006710000000000000000

specifically the "Important Warning".