[Pulp-dev] Type hinting in Pulp 3

[Daniel Alley]

For what it's worth, Pycharm does support PEP 484 type hinting.

https://www.jetbrains.com/help/pycharm/type-hinting-in-pycharm.html
https://blog.jetbrains.com/pycharm/2015/11/python-3-5-type-hinting-in-pycharm-5/

There are also projects like MyPy which behave like static analyzers.

It is theoretically possible to continue supporting Python 3.3-3.4 if we
were to put all of the type annotations into .pyi stub files, but I
personally dislike that idea strongly because it would result in a lot of
duplication.

On Mon, Jun 19, 2017 at 2:55 PM, David Davis <daviddavis at redhat.com> wrote:

> Recently we switched to using Google style docstrings. I was looking
> through the docs and saw that it supported type hinting
> (see function_with_types_in_docstring vs function_with_pep484_type_
> annotations):
>
> http://sphinxcontrib-napoleon.readthedocs.io/en/latest/example_google.html
>
> Unless I am mistaken, declaring functions using type hinting seems like no
> extra effort than declaring types in our docstring. I am wondering now
> might be a good time to consider using type hinting given that Pulp 3 is
> still fairly new?
>
> For more information about type hinting, check out PEP484:
>
> https://www.python.org/dev/peps/pep-0484/
>
> One concern I have about type hinting though is its newness. It’s only
> been around since Python 3.5 which also means Pulp 3 would have to require
> 3.5+. And it doesn’t look like there are many tools that leverage type
> hinting currently.
>
> Thoughts?
>
> David
>
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