That would mean that all of typing will be imported as part of startup, and
that module is too heavy for that. Also it might end up on recursion.
On Tue, Oct 8, 2019 at 09:06 Brandt Bucher <brandtbuc...@gmail.com> wrote:
> I’m a bit confused. For my own understanding: what’s stopping
> PyObject_IsInstance/PyObject_IsSubclass from just trying
> PyImport_GetModule("typing") here?
>
> If NULL, carry on. Otherwise, check the Union case.
>
> Brandt
>
> On Oct 8, 2019, at 05:44, Philippe Prados <philippe.pra...@gmail.com>
> wrote:
>
>
>
> Glups.
>
> I am not an expert of Pyhton source code. May be after this patch ;-)
>
> I think I should discuss with the authors of the module typing, to
> identify the best strategy.
> Who is he ?
>
> Philippe
>
>
> Le mar. 8 oct. 2019 à 10:19, Ivan Levkivskyi <levkivs...@gmail.com> a
> écrit :
>
>> You will need to rewrite most of things in C.
>>
>> --
>> Ivan
>>
>>
>> On Tue 8 Oct 2019, 08:53 Philippe Prados, <philippe.pra...@gmail.com>
>> wrote:
>>
>>> Ok,
>>>
>>> But _GenericAlias and dependencies are written with Python
>>> (Lib/typing.py), not with C.
>>> So, I must rewrite the _GenericAlias in C or it's possible to merge the
>>> C and Python in builtin and add a direct reference to _GenericAlias with C,
>>> and add the reference in builtin module ?
>>>
>>> Philippe
>>>
>>>
>>> Le lun. 7 oct. 2019 à 22:58, Random832 <random...@fastmail.com> a
>>> écrit :
>>>
>>>> On Mon, Oct 7, 2019, at 12:02, Philippe Prados wrote:
>>>> > Because this PEP propose to accept, for all classes
>>>> > assert isinstance("", int | str)
>>>> > assert issubclass(int, int | str)
>>>> > and add an operator __or__() for type type.
>>>> > def f(list: List[int | str], param: int | None) -> float | str:
>>>> > pass
>>>>
>>>> Oh, sorry, I didn't realize that this also included the | operator, I
>>>> thought this was just for isinstance("", Union[int, str]).
>>>>
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