[Python-Dev] PEP 590: vectorcall without tp_call

Brett Cannon brett at python.org
Wed May 29 12:49:00 EDT 2019

On Wed, May 29, 2019 at 7:55 AM Jeroen Demeyer <J.Demeyer at ugent.be> wrote:

> On 2019-05-29 16:00, Christian Heimes wrote:
> > You could add a check to PyType_Ready() and have it either return an
> > error or fix tp_call.
> Yes, but the question is: which of these two alternatives? I would vote
> for fixing tp_call but Petr voted for an error.

I also vote for the error so that people are sure they get the semantics
they want/expect. If not defining tp_call is a reasonable thing then I
would expect it to never have to be set to begin with and that doesn't
sound like what anyone wants if we're talking about automatically filling
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