[Python-3000] Draft pre-PEP: function annotations (original) (raw)

Guido van Rossum guido at python.org
Tue Aug 15 05:04:27 CEST 2006

On 8/14/06, Phillip J. Eby <pje at telecommunity.com> wrote:

At 1:51 PM 8/14/2006 -0700, "Paul Prescod" <paul at prescod.net> wrote: >On 8/14/06, Jim Jewett <jimjjewett at gmail.com> wrote: > > The definition of a type as an annotation should probably be either > > defined or explicitly undefined. Earlier discussions talked about > > things like > > > > def f (a:int, b:(float | Decimal), c:[int, str, X]) ->str) > > >I think that's a separate (large!) PEP. This PEP should disallow frameworks >from inventing their own meaning for this syntax (requiring them to at least >wrap). Then Guido and crew can dig into this issue on their own schedule.

I see we haven't made nearly as much progress on the concept of "no predefined semantics" as I thought we had. :( i.e., -1 on constraining what types mean.

Haven't I said that the whole time? I thought that Collin's PEP steered clear from the topic too. At the same time, does this preclude having some kind of "default" type notation in the standard library?

-- --Guido van Rossum (home page: http://www.python.org/~guido/)

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