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Wed Nov 14 23:51:37 CET 2012 · https://mail.python.org/pipermail/python-dev/2012-November/122720.html

On 2012-11-14 21:40, Greg Ewing wrote:
> Chris Angelico wrote:
>> Perhaps an alternative question: What can be done to make the latter
>> less unpalatable?
>
> * We could introduce a new syntax such as {a = 1, b = 2}.
>
> * If the compiler were allowed to recognise builtins, it could
> turn dict(a = 1, b = 2) into {'a':1, 'b':2} automatically.
>
That would be a transformation of the AST, although it assumes that
'dict' hasn't been rebound.

Should there be the option of a warning if a builtin is rebound? Or the
option of the transformation plus a warning if the builtin is rebound?

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[Python-Dev] performance of {} versus dict()