syncing flake8 changes for master branch

.github/workflows/master-pytest.yml

@@ -43,15 +43,26 @@ jobs:
         uses: actions/setup-python@v5
         with:
           python-version: ${{ matrix.python-version }}
-      - name: Update pip
-        run: |
-          python -m pip install --upgrade pip
+      # The next few steps (Install dependencies, Lint with Flake8, Test with Pytest) will install Python dependencies, 
+      # run tests and lint with a variety of Python versions
+      # For more information see: https://docs.github.com/en/actions/automating-builds-and-tests/building-and-testing-python
       - name: Install dependencies
         run: |
+          python -m pip install --upgrade pip
+          python -m pip install flake8 pytest
           python -m pip install -e .[dev]
+          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
+        id: pytest
         run: |
           pytest
+      # Testing Schemachange demo projects
       - name: Test Schemachange on ${{ matrix.os }} targeting ${{ env.SNOWFLAKE_DATABASE }}.${{ env.MY_TARGET_SCHEMA }} schema
         run: |
           echo "::group::Setting up ${MY_TARGET_SCHEMA}"