GitHub Action to test Python code

.github/workflows/python_tests.yml

@@ -0,0 +1,35 @@
+name: python_tests
+on:
+  push:
+    branches: [ master ]
+  pull_request:
+    branches: [ master ]
+jobs:
+  python_tests:
+    strategy:
+      fail-fast: false
+      matrix:
+        python-version: [2.7, 3.8]  # , 3.9]
+    runs-on: ubuntu-16.04  # Should match Dockerfile.olbase
+    steps:
+      - uses: actions/checkout@v2
+      - uses: actions/setup-python@v2
+        with:
+          python-version: ${{ matrix.python-version }}
+      # https://lxml.de/installation.html#requirements
+      - run: sudo apt-get install libxml2-dev libxslt-dev
+      - run: pip install --upgrade pip setuptools wheel
+      - run: pip install -r requirements_test.txt
+      - run: pip list --outdated
+      - if: matrix.python-version == 3.8
+        run: make lint-diff
+      - run: make git
+      - run: make i18n
+      # Run legacy Python tests on legacy Infogami
+      - if: matrix.python-version < 3.0
+        run: make test-py && source scripts/run_doctests.sh
+      # Run both Py2 and Py3 tests on Infogami master
+      - run: pushd vendor/infogami && git pull origin master && popd
+      - run: make lint
+      - run: make test-py
+      - run: source scripts/run_doctests.sh