Configuring with pyproject.toml

[WilliamBergamin]

These changes started out as an exploration of the pyproject.toml file. In the process I learnt that since PEP 621, the Python community selected pyproject.toml as a standard way of specifying project metadata.

This PR aims to introduce changes that make the pyproject.toml the default configuration file for bolt-python, there are some slight differences but the testing, packaging and publishing behaviors should remain the same as they were

I've opted to rely on the Requirements File Format pattern to import test dependencies since it yields a clear distinction between the project dependencies and the development dependencies

Is the pyproject.toml configuration pattern something we would want to adopt in our python projects?

Category

• slack_bolt.App and/or its core components
• slack_bolt.async_app.AsyncApp and/or its core components
• Adapters in slack_bolt.adapter
• Document pages under /docs
• Others

Requirements

Please read the Contributing guidelines and Code of Conduct before creating this issue or pull request. By submitting, you are agreeing to those rules.

• I've read and understood the Contributing Guidelines and have done my best effort to follow them.
• I've read and agree to the Code of Conduct.
• I've run ./scripts/install_all_and_run_tests.sh after making the changes.

[seratch]

@WilliamBergamin Thanks for proposing this! As long as the release process goes well, migrating to pyproject.toml should be a good way to go! Can you adjust the CI build settings to pass the tests? Also, checking if the package upload works using https://test.pypi.org/ would be safe.

[seratch]

Perhaps, need changes on this part

[WilliamBergamin]

Great point, I've fixed up the CI parts to work with the new changes

NOTE: there are some limitation with python 3.6 that required work arounds

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Comparison is base (9209e7b) 91.76% compared to head (76c668a) 91.76%.

Additional details and impacted files

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##             main     #996   +/-   ##
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  Coverage   91.76%   91.76%           
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  Files         181      181           
  Lines        6312     6312           
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  Hits         5792     5792           
  Misses        520      520           

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[WilliamBergamin]

@seratch I've deployed a test package to https://test.pypi.org/project/slack-bolt/ and everything seems to be the same apart from the "Homepage" link being renamed to "homepage"

Could you take a look and let me know if you find any discrepancies

[seratch]

Thank you! I just confirmed the package file uploaded to test PyPI works without any issues.

[seratch]

One nit comment but this looks great to me! After fixing the minor error in a comment, you can merge this PR.

[seratch]

Also, when you merge this, please use "Squash and merge" button to make the diffs simpler