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.github/workflows/ci.yml

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+name: CI
+on:
+  push:
+    branches:
+      - main
+  pull_request:
+    branches:
+      - main
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v2
+      - name: Set up Python 3.9
+        uses: actions/setup-python@v2
+        with:
+          python-versions: [3.6, 3.9]
+      - name: Install dependencies
+        run: |
+          python -m pip install --upgrade pip
+          pip install pytest pycodestyle
+          if [ -f requirements.txt ]; then pip install -r requirements.txt; fi
+      - name: Run tests with pytest
+        run: |
+          pytest
+      - name: Lint with PyCodeStyle
+        run: |
+          find . -name \*.py -exec pycodestyle {} +