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[Python-ideas] Light-weight call-by-name syntax in Python
Stephan Houbenstephanh42 at gmail.com
Fri Feb 17 05:46:00 EST 2017
Hi Nathaniel,2017-02-17 11:28 GMT+01:00 Nathaniel Smith <njs at pobox.com>:>> Note that this is definitely a different proposal from the original,> since the original proposer's goal was to be able to use this with> existing, unmodified functions that expect a regular value, not a> lambda.>> I don't really see how that goal can be accomplished without massively> revising Python's runtime model, so this doesn't really bother me, but> it should be noted :-).>Yep ;-)>> Anyway, you might also be interested in:>>https://mail.python.org/pipermail/python-ideas/2016-> November/043590.html>> which is a similar idea and some more motivating examples, except that> it allows for the full richness of Python's call syntax, and passes> ASTs rather than lambdas to allow for non-standard evaluation rules.>>Frankly, I think that proposal is too baroque.The simplicity of my proposal is intentional.Just passing in a callable makes it simpler and makes italso more likely that existing functions could be used with it.I have considered adding all kind of syntax for adding extra argumentsto the wrapped callable, extra arguments for the invoked function, ...basically that just makes it a mess. If you want that, use the existingsyntax.By the way, got a private e-mail mentioning that the proposed syntax isalready claimed bytype annotations. So therefore a :: bis now my proposed syntax.Stephan> -n>> --> Nathaniel J. Smith --https://vorpus.org>-------------- next part --------------An HTML attachment was scrubbed...URL: <http://mail.python.org/pipermail/python-ideas/attachments/20170217/08db2556/attachment.html>
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