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

25 Mar 2002

      Milos Prudek wrote:
...
I think I'm going slightly mad :-)
OK, I tracked it down to what amounts to IMHO a Python feature  :-O
...
...
...
x=['a','b','c']
x
['a', 'b', 'c']
y=x
y
['a', 'b', 'c']
y.remove('b')
y
['a', 'c']
x
['a', 'c']
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.

I use Python 2.1.1 on Linux.

Is this normal Python behaviour?

-- 
Milos Prudek