The problem with "as" [was "Re: PEP 318"]

[Skip Montanaro]

    DH> Possible future Python example that uses "as" differently:

    DH> def foo(x as int, y as float) as int:
    DH>     "this function returns an integer, and takes an int & float params"

With no extension beyond the current PEP 318 proposal, you might postulate
returns() and accepts() decorators:

    def foo(x, y) [accepts(int, float), returns(int)]:
        ...

which extend foo() with code to enforce input and output types.  Further,
function attributes could be added which could be used by tools like
pychecker for intermodule type checking.

Skip