Add type hints to function signatures

[volcan01010]

Summary

As a BNG user, I want type hints on the function signatures so that my IDE can tell me what types to expect.

Description

Adding type hints (https://realpython.com/lessons/type-hinting/) helps IDEs with autocompletion and gives users information about what inputs they are required to provide.

Acceptance criteria

• to_osgb36 has type hints on the function signature
• from_osgb36 has type hints on the function signature

[Jukelyn]

Did you want just those two functions to have type hints?

[volcan01010]

Yes, please. Those are the only ones that end users will interact with.

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On Mon, 18 Jul 2022, 08:54 Mehraz Ahmed, ***@***.***> wrote: Did you want just those two functions to have type hints? — Reply to this email directly, view it on GitHub <#3 (comment)>, or unsubscribe <https://github.com/notifications/unsubscribe-auth/AC33O27VUO7EZ6OYKXLQYCTVUUERRANCNFSM53RL2BHQ> . You are receiving this because you authored the thread.Message ID: ***@***.***>

[volcan01010]

Also, don't worry about backwards compatibility too much. The next release can be for Python >= 3.7.

…

On Mon, 18 Jul 2022, 08:54 Mehraz Ahmed, ***@***.***> wrote: Did you want just those two functions to have type hints? — Reply to this email directly, view it on GitHub <#3 (comment)>, or unsubscribe <https://github.com/notifications/unsubscribe-auth/AC33O27VUO7EZ6OYKXLQYCTVUUERRANCNFSM53RL2BHQ> . You are receiving this because you authored the thread.Message ID: ***@***.***>

[Jukelyn]

I've done them and they work for newer Python 3 versions! commit above e714258

[volcan01010]

Thanks! We need to specify the type for `figs` as well. Also, can you please update `setup.py` to specify Python 3.7 or greater? John

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On Tue, 19 Jul 2022, 05:28 Mehraz Ahmed, ***@***.***> wrote: I've done them and they work for newer Python 3 versions! commit above e714258 <Jukelyn/bng@e714258> — Reply to this email directly, view it on GitHub <#3 (comment)>, or unsubscribe <https://github.com/notifications/unsubscribe-auth/AC33O24RBCBCIAONR6BVHWDVUYVIDANCNFSM53RL2BHQ> . You are receiving this because you authored the thread.Message ID: ***@***.***>

[Jukelyn]

Done! 418f1f0