build_and_release.yml

name: Publish package to PyPI

on:
  release:
    types: [created]

jobs:
  release:
#    if: github.event_name == 'release' && github.event.action == 'created'
    name: PyPi Release
    runs-on: ubuntu-latest

    steps:
    - uses: actions/checkout@v2
      name: Checkout repo

    - name: Set up Python 3.7
      uses: actions/setup-python@v1
      with:
        python-version: 3.7

    - uses: actions/cache@v1
      name: Cache pip dependencies
      with:
        path: ~/.cache/pip
        key: ${{ runner.os }}-pip-${{ hashFiles('requirements.txt') }}
        restore-keys: |
          ${{ runner.os }}-pip-
    - name: Install pip dependencies
      run: |
         pip install --upgrade pip
         pip install -r requirements.txt
         python3 -m pip install --upgrade build twine wheel
    - name: Make distribution
      run: |
        python3 setup.py sdist bdist_wheel
        twine check dist/*
    - name: Publish a Python distribution to PyPI
      uses: pypa/gh-action-pypi-publish@master
      with:
        user: __token__
        password: ${{ secrets.PYPI_TOKEN }}