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Document how to use varargs in Argument Clinic by aisk · Pull Request #1277 · python/devguide · GitHub

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Document how to use varargs in Argument Clinic #1277

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aisk wants to merge 7 commits into from
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Document how to use varargs in Argument Clinic #1277

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449ff4e
Document how to use varargs in Argument Clinic
aisk Feb 23, 2024
bf96705
move up the section
aisk Feb 25, 2024
ec5c728
Use the term from https://docs.python.org/3/glossary.html#term-parameter
aisk Feb 25, 2024
f2edea8
remove the term markup
aisk Feb 25, 2024
b2f1914
Add description about what the implementaion functions will receive
aisk Oct 13, 2024
7d6c9c9
Update development-tools/clinic.rst
aisk Oct 14, 2024
9e7f846
Merge branch 'main' into ac-varargs
aisk Jul 21, 2025
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20 changes: 20 additions & 0 deletions development-tools/clinic.rst
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Expand Up @@ -1495,6 +1495,26 @@ You can still use a self converter, a return converter, and specify
a *type* argument to the object converter for :c:macro:`METH_O`.


How to convert var-positional parameter functions
-------------------------------------------------

To convert a var-positional parameter function,
prepending the parameter name with ``*`` ,
and the parameter should use the ``object`` converter::

JelleZijlstra Oct 13, 2024

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Choose a reason Spam Abuse Off Topic Outdated Duplicate Resolved Low Quality

What happens if I use something else? E.g., what if I want to accept an arbitrary number of ints?

Also, what type does the implementation function receive?

aisk Oct 13, 2024

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Choose a reason Spam Abuse Off Topic Outdated Duplicate Resolved Low Quality

Thank you for the review! I have added a new paragraph to explain more about it.

/*[clinic input]
var_positional_sample

foo: int
*args: object
[clinic start generated code]*/

The implementation function will receive var-positional arguments
as a tuple.

.. versionadded:: 3.11
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How to convert ``tp_new`` and ``tp_init`` functions
---------------------------------------------------

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