Type hints

[aucampia]

boltons have some nice functionality but it would be very handy if it also had type hints. From #318 it seems you are open to type hints, but I just want to confirm this, and check if you have any specific preferences for how they should be added.

From what I gather from the linked issue:

• You prefer type hints in .py files (i.e. embedded) as opposed to having them in separate .pyi files
• You want validation in CI

Is there any thing more I should consider before working on it?

[mahmoud]

Hey Iwan! Thanks for your interest and I'm glad you asked. Actually since going 3.7+, yes, I think the answer here has gotten a lot simpler: Type hints welcome, annotations preferred, no comments / .pyi necessary.

Other than that, I'd request smaller PRs preferred, starting with the functions/types that are least ambiguous to type or that you feel most comfortable typing. :) Also on the docket, if you're typing a signature that involves a **kwargs, feel free to convert it to * kw-only args. :)

Looking forward to seeing what you come up with!