"Terry Reedy" <[EMAIL PROTECTED]> writes:
> Consider
> >>> map(len, ('abc', (1,2,3), [1,2], {1:2}))
> [3, 3, 2, 1]
>
> Now try to rewrite this using methods (member functions).
[x.len() for x in ('abc', (1,2,3), [1,2], {1:2})]
> > - Why doesn't sort() return a value?
>
> Because it is an in-place mutation method and Guido decided that such
> methods should return None rather that the mutated object to lessen bugs.
> It is a tradeoff that has been debated ever since ;-)
Nah, we have sorted() now, a functionalista victory ;-)
> I presume the new-in-2.5 default dicts will do the same, and also work when
> the key does not exist and the default is a list.
Man, it's hard to keep track of these new features. Default dicts do
sound like a good addition; I've used those d.setdefault/d.get idioms
way too often.
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