>> As far as I understand, Python 3 will allow to achieve the same using
>> the natural syntax `def f(x: int, y: float) : ...`, with flexibility
>> on what "type" can be.
>
> Unfortunately, type declarations, with that syntax, was *proposed* for
> Python 3, but then soundly rejected by Guido as "too ugly".
I have good news -- I think you're misreading the current status:
Python 3.3.0 (v3.3.0:bd8afb90ebf2, Sep 29 2012, 01:25:11)
[GCC 4.2.1 (Apple Inc. build 5666) (dot 3)] on darwin
Type "help", "copyright", "credits" or "license" for more information.
>>> def f(a: int, b: float) -> (float, str):
... pass
...
>>> f.__annotations__
{'b': <class 'float'>, 'return': (<class 'float'>, <class 'str'>),
'a': <class 'int'>}
Doug
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