[EMAIL PROTECTED] schrieb:
> And this, again from the doc(about mapping objects):
> A mapping object maps immutable values to arbitrary objects.
> Seems that is questionable too.
> a=(1,[])
> d={}
> d[a]=1
> again would give TypeError, list object are unhashable.
That's a good example showing that the term 'mutable' is not so
well-defined as it may seem.
If you set b=[]; a=(1,b); should a be considered mutable (because you
can change its value by changing b), or should it be considered
immutable (because it is a tuple)?
-- Christoph
--
http://mail.python.org/mailman/listinfo/python-list
