Configure Github Actions CI to run pytest

.github/workflows/.python-ci.yml

@@ -0,0 +1,27 @@
+# .python-ci.yml
+
+name: basic CI
+on:
+  push:
+    branches: [ master, main ]
+  pull_request:
+    branches: [ master, main ]
+jobs:
+  build-and-run-pytest:
+    runs-on: ubuntu-latest
+    steps:
+    # First step (unnamed here) is to checkout to the branch that triggered the event
+    - uses: actions/checkout@v3
+    # Second step: install python 3.8
+    - name: Set up Python 3.8
+      uses: actions/setup-python@v2
+      with:
+        python-version: "3.8"
+    - name: Install dependencies
+      run: |
+        python -m pip install --upgrade pip
+        pip install poetry
+        poetry install
+    - name: Run tests
+      run: |
+        poetry run pytest