fix python_package.yml

.github/workflows/python_package.yml

@@ -20,11 +20,16 @@ jobs:
       - name: Install dependencies
         run: |
           python -m pip install --upgrade pip
-          pip install pipenv
-          pipenv install --system --deploy
+          pip install poetry
+          poetry install
+      - name: Lint with flake8
+        run: |
+          pip install flake8
+          # 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: |
-          pipenv install --system --deploy
-          pip install pytest
           cd tests
-          pytest
+          poetry run pytest