Installation notes:

* to install in developer mode::

    $ pip install -e .

* you can run the __main__.py of the modules using python option `-m`, e.g.::

    $ python -m pyyc

  or from IPython::

    In: %run -m pyyc

* to upload to PyPI::

    $ hatch build
    $ hatch publish

  In case of errors, you can check the distribution using::

    $ twine check dist/*
