Update: Now pypi uses API tokens to push packages to it!

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Example: https://packaging.python.org/tutorials/packaging-projects/ Deploy to Pypi from travis: https://docs.travis-ci.com/user/deployment/pypi/

# From the root of repository
# Generate package
pip install --user --upgrade setuptools wheel twine
python3 setup.py sdist bdist_wheel

To upload (and then verify) to test.pypi:

# Push & pull back down again
twine upload --repository-url https://test.pypi.org/legacy/ dist/*
pip3 install --index-url https://test.pypi.org/simple/ --no-deps <pkg-name>

To upload to production pypi

# Push & pull back down again
twine upload dist/*
pip3 install --no-deps <pkg-name>

WARNING: You have to bump the version before deploying!