Before a release.

set version number in setup.py, also in the config file of the documentation and init of the package

Note: in the config for sphinx~ this is taken from gempy.init

requirements.txt, optional_requirements.txt, dev_requirements.txt should either set minimum version and reject versions

# add new tag
$ git tag X.X -m "Add X.X tag for PyPI"
# push git tag
$ git push --tags origin master

#  First create the dist
python3 setup.py sdist bdist_wheel

# Second upload the distributions
twine upload dist/*