Add basic pytest gh action

.github/workflows/pytest.yml

@@ -0,0 +1,32 @@
+name: Python Test
+
+on: [push]
+
+jobs:
+  build:
+
+    runs-on: ubuntu-latest
+    strategy:
+      matrix:
+        python-version: ["3.7", "3.8", "3.9", "3.10", "3.11"]
+
+    steps:
+      - uses: actions/checkout@v4
+      - name: Setup Python # Set Python version
+        uses: actions/setup-python@v4
+        with:
+          python-version: ${{ matrix.python-version }}
+      # Install pip and pytest
+      - name: Install dependencies
+        run: |
+          python -m pip install --upgrade pip
+          pip install pytest
+      - name: Test with pytest
+        run: pytest tests.py --doctest-modules --junitxml=junit/test-results-${{ matrix.python-version }}.xml
+      - name: Upload pytest test results
+        uses: actions/upload-artifact@v4
+        with:
+          name: pytest-results-${{ matrix.python-version }}
+          path: junit/test-results-${{ matrix.python-version }}.xml
+        # Use always() to always run this step to publish test results when there are test failures
+        if: ${{ always() }}