HOWTO_UPLOAD_TO_PYPI

# create a source-distribution
# be sure to bump you version number up!
python3 setup.py sdist

# see distributions
ls -la dist/

# upload distribution(s) to pypi
# a version, once uploaded, cannot be overwritten in pypi
# it only can be deleted.
# for pre-releases use version number like 1.0.0.dev1, 1.0.0.dev2 etc.
twine upload dist/*

# upload distribution to test.pypi.org repository
# repo must be specified in a [test] section in your ~/.pypirc file:
# [test]
# repository=https://test.pypi.org/legacy/
#
twine upload --repository test dist/*