is extending an object considered acceptable usage?

[Terry Reedy]

"mike" <ng01.spamguard at icewater.org> wrote in message 
news:qijJd.14679$Gc2.13828 at fe06.lga...
> sometimes i want a list of categories, and from each i want to be able to 
> access a list of its items.  in this case is it considered acceptable to 
> just create a list of those items and assign it as a property of their 
> category?  eg:

To me, Python is about being what it is, and not any other language.  It is 
about writing correct readable algorithms.  It is about enjoying 
programming.  It is about programmers being responsible for their own code.

I hope you find this more helpful than any yes or no could be.

Terry J. Reedy