updated to a matrix strategy, removed flake8 modifiers, imporved test…

… and coverage reporting

.github/workflows/python-app.yml

@@ -1,5 +1,4 @@
-# This workflow will install Python dependencies, run tests and lint with a single version of Python
-# For more information see: https://docs.github.com/en/actions/automating-builds-and-tests/building-and-testing-python
+# This workflow will install Python dependencies, run tests and lint with multiple versions of Python.
 
 name: Python application
 
@@ -16,13 +15,18 @@ jobs:
   build:
 
     runs-on: ubuntu-latest
+    strategy:
+      matrix:
+        python-version: ["3.8", "3.9", "3.10", "3.11", "3.12"]
 
     steps:
     - uses: actions/checkout@v3
-    - name: Set up Python 3.12
+    - name: Set up Python ${{ matrix.python-version }}
       uses: actions/setup-python@v3
       with:
-        python-version: "3.12"
+        python-version: ${{ matrix.python-version }}
+    - name: Display Python version
+      run: python -c "import sys; print(sys.version)"
     - name: Install dependencies
       run: |
         python -m pip install --upgrade pip
@@ -33,7 +37,7 @@ jobs:
         # stop the build if there are Python syntax errors or undefined names
         flake8 . --count --select=E9,F63,F7,F82 --show-source --statistics
         # exit-zero treats all errors as warnings. The GitHub editor is 127 chars wide
-        flake8 . --count --exit-zero --max-complexity=10 --max-line-length=127 --statistics
+        flake8 . --count --exit-zero --statistics
     - name: Test with pytest
       run: |
-        pytest
+        pytest -v --cov --no-cov-on-fail --cov-report term-missing