Just van Rossum wrote:
> Why couldn't at least augmented assignment be implicitly rebinding? It
> has been suggested before (in the context of a rebinding operator), but
> I'm wondering, is this also off the table?
>
> def counter(num):
> def inc():
> num += 1
> return num
> return inc
>
> Reads very natural to me. It's likely the most frequent example of what
> people try before they learn that rebinding to outer scopes isn't
> allowed. It could Just Work.
note that most examples of this type already work, if the target type is
mutable, and implement the right operations:
def counter(num):
num = mutable_int(num)
def inc():
num += 1
return num
return inc
maybe we should consider adding mutable strings and mutable numbers to
Python 3.0 ? and a "mutable" built-in, that does the opposite of the
"freeze" stuff:
def counter(num):
num = mutable(num)
def inc():
num += 1
return num
return inc
(what is this thread doing on python-dev, btw? shouldn't it be over at
the 3000 list, so I can enjoy my vacation without being drawn into yet
another endless discussion thread ;-)
</F>
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