[Python-Dev] Re: PEP 279 revisited
Wed, 24 Apr 2002 16:03:41 +0200
On Wed, Apr 24, 2002 at 08:47:25AM -0400, Guido van Rossum wrote:
> > If you consider lists to be a special dictionary
> > with implicit keys we can define 'items' to
> > generate (key,value) pairs for a collection so that
> > for key,value in items(collection):
> > collection[key]==value
> > holds no matter if collection is a list or a dictionary,
> This has been proposed and rejected before. We've made the decision
> that "iter(dict)" iterates over the keys while "iter(list)" iterates
> over the values, and anything that tries to unify the two types
> (really categories of types: sequences and mappings) is bound to fail.
ok, i am fine with that.
after all i can always define my own 'items' or maybe better
'keyvalues' method to achieve the unification where needed :-)
regarding PEP279 i go with 'itemize' ...