setup.py -> pyproject.toml, and mv tap to src

[kddubey]

The goal of this PR is to make tap's structure a bit safer. Here are the changes:

1. Replace setup.py w/ a static pyproject.toml. See docs
2. Move tap to src/tap. See docs
3. Store tap.__version__ as a literal string

From the user's perspective, I believe there aren't any breaking changes. But in case you prefer making the most minimal change to fix #141, it would be to add a pyproject.toml which looks like this:

[build-system]
requires = ["setuptools"]
build-backend = "setuptools.build_meta"

How has this been tested?

Install the fork

1. Make and activate a fresh venv (I use virtualenvwrapper)

   mkvirtualenv temp
   

2. Uninstall wheel, setuptools

   python -m pip uninstall wheel setuptools --upgrade pip
   

3. Install the package from the fork

   python -m pip install git+https://github.com/kddubey/typed-argument-parser.git@pyprojecttoml
   

4. Install pytest and pydantic, and run pytest

   python -m pip install pytest "pydantic>=2"
   

   pytest
   

5. rm temp

   rmvirtualenv temp
   

Build, test-upload, install, and test the package

1. Checkout this branch:

   git pull
   

   git checkout pyprojecttoml
   

2. Make and activate a fresh venv (I use virtualenvwrapper)

   mkvirtualenv temp
   

3. Install some packaging things

   python -m pip install build twine
   

4. Build the package

   python -m build
   

   dist/ should have:

   typed_argument_parser-1.10.0-py3-none-any.whl
   typed_argument_parser-1.10.0.tar.gz
   

5. Test the contents of dist/

   python -m twine check dist/*
   

6. Test that fake-uploading to PyPI works (I haven't actually ran this step onwards)

   python -m twine upload --repository testpypi dist/*
   

   You may wanna also check that https://test.pypi.org/project/typed-argument-parser looks good

7. Test that installing from this test PyPI repo works

   python -m pip install \
       --index-url https://test.pypi.org/simple/ \
       --extra-index-url https://pypi.org/simple/ \
       typed-argument-parser
   

8. Install pytest and pydantic, and run pytest

   python -m pip install pytest "pydantic>=2"
   

   pytest
   

9. Maybe run some of the demo scripts in the repo in case you wanna double check

10. rm temp

rmvirtualenv temp

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All modified and coverable lines are covered by tests ✅

Project coverage is 94.07%. Comparing base (b6505ff) to head (9f90ea1).

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Additional details and impacted files

@@            Coverage Diff             @@
##             main     #142      +/-   ##
==========================================
- Coverage   94.10%   94.07%   -0.03%     
==========================================
  Files           5        4       -1     
  Lines         695      692       -3     
==========================================
- Hits          654      651       -3     
  Misses         41       41              

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[martinjm97]

Great work as always @kddubey! Thank you!