[Zope] Changing a COPY of metadata modifies ZClass instance?

[Milos Prudek]

>>This problem applies to lists only... a simple assignment seems to
>>assign a reference to original variable instead of creating a copy of
>>original variable data.
>>Is this normal Python behaviour?


> this is essential python behaviour.

OK. Thank you for your help, Hans!

> AND: from copy import copy, deepcopy.

Good tip. It is also possible to assign "y=x[0:]", and voila, y is data 
copy, not a reference, and it is independent.


-- 
Milos Prudek