[Python-Dev] Updated PEP 362 (Function Signature Object) (original) (raw)

Brett Cannon brett at python.org
Wed Jun 6 19:15:13 CEST 2012

On Wed, Jun 6, 2012 at 12:16 PM, Steven D'Aprano <steve at pearwood.info>wrote:

Larry Hastings wrote:

[...]

"Changes to the Signature object, or to any of its data members, do not affect the function itself."

which leaves the possibility that signature may no longer match the actual argument spec, for some reason. If you remove getfullargspec, people will have to reinvent it to deal with such cases.

There's no reason why they should disagree. The "some reason" would be if some doorknob decided to change it--the objects are mutable, because there's no good reason to make them immutable. Nevertheless, the world is full of doorknobs, and people will have to deal with their code.

This is also Python, the language that assumes everyone is an consenting adult.

The case for deprecating getfullargspec is weak. The case for deprecating it right now is even weaker. Let's not rush to throw away working code. If people really want to keep getullargspec() around then I want to at least add a note to the function that signature objects exist as an alternative (but not vice-versa). I personally still regret the getopt/argparse situation and this feels like that on a smaller scale.

-Brett

-- Steven _______** Python-Dev mailing list Python-Dev at python.org http://mail.python.org/**mailman/listinfo/python-dev<http://mail.python.org/mailman/listinfo/python-dev> Unsubscribe: http://mail.python.org/mailman/options/python-dev/ brett%40python.org<http://mail.python.org/mailman/options/python-dev/brett%40python.org> -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://mail.python.org/pipermail/python-dev/attachments/20120606/1ed511dc/attachment.html>

More information about the Python-Dev mailing list