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[Python-Dev] __signature__ for PySide ready

[Python-Dev] __signature__ for PySide readyBrett Cannon brett at python.org
Fri Aug 18 12:31:22 EDT 2017
On Fri, 18 Aug 2017 at 02:05 Christian Tismer <tismer at stackless.com> wrote:

> Hi friends,
>
> in the last months, I have developed signature support for
> PySide. The module creates the same signatures as are known
> for plain Python functions.
>
> As a non-trivial addition, the module also handles multiple
> signatures as a list. I consider this extension to PySide
> as quite essential and actually more important as for Python
> itself, because type info is rather crucial for PySide.
>
> Initially, I wrote this as a pure Python 3 extension.
> Then I was "asked" to port this to Python 2 too, which was
> quite hairy to do. I'm not sure if I should have done that.
>
> Before I publish this module, I want to ask:
> --------------------------------------------
>
> Is it a bad idea to support signatures in Python 2 as well?
> Do I introduce a feature that should not exist in Python 2?
> Or is it fine to do so?
>
> Please let me know your opinion, I am happy with any result.
>

If you're getting paid to do the port then I don't think it really hurts
anything since it isn't going to magically open Python 2 to more usage. In
fact, if you are filling in the annotation information so that type hints
are being exposed then maybe there's a chance it might help someone port to
Python 3?
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