Fix formatting, and black

.github/workflows/python_app.yml

@@ -32,9 +32,8 @@ jobs:
       run: |
         python -m pip install --upgrade pip
         pip install poetry==1.8.3
-        poetry install --no-cache
-        if [ -f pyproject.toml]; then poetry install
-        elif [-f requirements.txt ]; then pip install -r requirements.txt; 
+        if [ -f pyproject.toml ]; then poetry install
+        elif [ -f requirements.txt ]; then pip install -r requirements.txt; 
         fi
     - name: Lint with flake8
       run: |
@@ -44,13 +43,13 @@ jobs:
         flake8 . --count --exit-zero --max-complexity=10 --max-line-length=127 --statistics
     - name: Black check
       run: |
-          black --check app/
-          enforce:
-            always:
+         black --check app/
+         enforce:
+           always:
     - name: Test with pytest
       run: |
         # Test backend
-          coverage run --source=app -m pytest tests
-          coverage report -m
+         coverage run --source=app -m pytest tests
+         coverage report -m