add py.typed file

[mgab]

Add py.typed file so that mypy can access the type hints. See https://mypy.readthedocs.io/en/stable/installed_packages.html#creating-pep-561-compatible-packages and https://peps.python.org/pep-0561/

closes #176

[liormizr]

Hi @mgab
Thank you for taking this task :-)
2 questions, do we need to add global-include *.typed to the MANIFEST.in file?
second question, I see that the py.typed is empty, are you planning to fill it?

I'm planning to deploy a big version in few days
waiting for your feedback to see if we will include this task

[mgab]

do we need to add global-include *.typed to the MANIFEST.in file?

I think it's equivalent to adding it to the package_data parameter in setup.py, but for consistency probably it's better to add it in the MANIFEST.in file instead.

I see that the py.typed is empty, are you planning to fill it?

AFAIU it's supposed to be a marker file that just needs to exist without any expected content. The docs only mention filling it with partial\n if the package provides both inline type hints and stubs.

In any case I'll add a comment just as they do in the mypy package to make clear why it exists

[liormizr]

Hi @mgab

Thank you verry much
I approved the PR and it will be part of version 0.6

[mgab]

Oh, I was just making the changes mentioned (use manifest instead of package_Data, and add a comment in py.typed). Are you interested in them?