New submission from Julien Palard:
Today, writing an AC declaration like:
something: Py_ssize_t(c_default="-1") = None
Leads to the almost obvious "Py_ssize_t_converter: default value None for field
something is not of type int".
But it actually make sense:
- Accept None as a default python value
- Document "something=None" in the docstring
- Write `Py_ssize_t something = -1` in the C code
- Don't try to parse the argument if it's the default value, keeping the value
from the C initialization
In other words, it's a "Give -1 to the C implementation when argument is not
given or None, and it may be usefull, typically I'll use it in issue28754.
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components: Argument Clinic
messages: 282861
nosy: larry, mdk
priority: normal
severity: normal
status: open
title: AC: Accept None as a default value for any type
versions: Python 3.7
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Python tracker <rep...@bugs.python.org>
<http://bugs.python.org/issue28933>
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