[Python-Dev] Re: PEP239 (Rational Numbers) Reference Implementation and new issues

Tim Peters tim.one@comcast.net
2002年10月03日 22:34:00 -0400 

[Delaney, Timothy]
> ...
> Actually, following through my thought processes, ``x:y`` is only
> legal in the context of a sequence slice i.e. inside ``[]``.

Dicts are worse. {1:2:3} would be hopelessly ambiguous.

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