2010/4/16 Raymond Hettinger <raymond.hettinger at gmail.com>:
>
>>> Guido van Rossum, 16.04.2010 16:33:
>>>>
>>>> I am fine with
>>>> declaring dict({}, **{1:3}) illegal, since after all it is abuse of
>>>> the ** mechanism.
>
> ISTM that making it illegal costs cycles with giving any real benefit.
> It is reasonably common to accept **kwds and then pass it down
> to another function. Do we want to validate the keys of every
> kwds dict on every call? Why do we even care?
>
> If I'm understanding the proposal correctly, it means that
> every existing application using **kwds will pay a price, either
> by breaking (because it uses non-string keys) or by running
> slower (so that every call can be checked to make sure it
> didn't use string keys).
We already pay that price for any Python function, so I'm not sure
what difference adding to C, too, makes.
--
Regards,
Benjamin
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