Filip Gruszczyński wrote:
You mean the type? Not in 2.x, but in 3.x, there are function
annotations:
def a_function(arg1: int, arg2: str) -> None: pass
Nope, I don't like types ;-) 3.x seems pretty revolutionary, and this
typing can be appreciated by some people.
Declaring what about them? If you mean declaring the type, remember
that Python deliberately allows any name to be bound to any object;
type declarations can't be enforced without losing a lot of the power
of Python.
Just declaring, that they exist. Saying, that in certain function
there would appear only specified variables. Like in smalltalk, if I
remember correctly.
Icon has (had?) the same feature: if the "local" statement appeared then
the names listed in it could be assigned in the local namespace, and
assignment to other names wasn't allowed.
A lot of people assume that's what the __slots__ feature of the new
object model is for, but it isn't: it's actually a memory conservation
device for circumstances when millions of objects must be created in an
application.
regards
Steve
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