MAINT: more cryptic CI fails

.github/workflows/python-app.yml

@@ -21,39 +21,34 @@ on:
       - 'trimnami/**'
       - 'setup.py'
 
-permissions:
-  contents: read
 
 jobs:
-  tests:
+  build:
     name: "Python ${{ matrix.python-version }} on ${{ matrix.os }}"
     runs-on: ${{ matrix.os }}
-
-    defaults:
-      run:
-        shell: bash -el {0}
-
     strategy:
       fail-fast: false
       matrix:
         os: [macos-latest, ubuntu-latest]
         python-version: ["3.9", "3.10", "3.11"]
 
-      steps:
-      - uses: actions/checkout@v3
-      - name: Set up Python
-        uses: actions/setup-python@v3
-        with:
-          python-version: ${{ matrix.python-version }}
-      - name: Install dependencies
-        run: |
-          python -m pip install --upgrade pip
-          python -m pip install flake8 pytest coverage
-          python -m pip install .
-      - name: Lint with flake8
-        run: |
-          flake8 . --count --select=E9,F63,F7,F82 --show-source --statistics
-          flake8 . --count --exit-zero --max-complexity=10 --max-line-length=127 --statistics
-        - name: Test and generate coverage
-          run: |
-            coverage run -m pytest
+    steps:
+    - uses: actions/checkout@v3
+    - name: Set up Python ${{ matrix.python-version }}
+      uses: actions/setup-python@v3
+      with:
+        python-version: ${{ matrix.python-version }}
+    - name: Install dependencies
+      run: |
+        python -m pip install --upgrade pip
+        python -m pip install flake8 pytest
+        if [ -f requirements.txt ]; then pip install -r requirements.txt; fi
+    - name: Lint with flake8
+      run: |
+        # 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
+    - name: Test with pytest
+      run: |
+        pytest