Add flake8 linter for Python scripts in the whole repository (learning-process#125)

Author: aobolensk

Diff for: .github/workflows/static-analysis.yml

@@ -10,3 +10,13 @@ jobs:
     - uses: DoozyX/[email protected]
       with:
         source: '.'
+  python-lint:
+    runs-on: ubuntu-latest
+    steps:
+    - uses: actions/checkout@v4
+    - name: Setup environment
+      run: |
+        python3 -m pip install flake8
+    - name: Run linter
+      run: |
+        python3 -m flake8 .

Diff for: setup.cfg

@@ -0,0 +1,4 @@
+[flake8]
+max-line-length = 120
+exclude =
+    3rdparty