replace pip with poetry

.github/workflows/pylint.yml

@@ -12,22 +12,43 @@ jobs:
       matrix:
         python-version: ["3.11"]
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
       - name: Set up Python ${{ matrix.python-version }}
-        uses: actions/setup-python@v3
+        uses: actions/setup-python@v4
         with:
           python-version: ${{ matrix.python-version }}
-      - name: Install dependencies
+
+      # - name: Install dependencies
+      #   run: |
+      #     python -m pip install --upgrade pip
+      #     python -m venv venv
+      #     # https://stackoverflow.com/a/74669486
+      #     # https://docs.github.com/en/actions/using-workflows/workflow-commands-for-github-actions#setting-an-environment-variable
+      #     . venv/bin/activate
+      #     echo PATH=$PATH >> $GITHUB_ENV
+      #     pip install -U pip wheel setuptools
+      #     pip install pylint
+      #     pip install -r requirements.txt
+      #     # https://github.com/pylint-dev/pylint/blob/59194ebfa600b91ec4d5cef49370b7132b0413a3/pylint/lint/base_options.py#L153
+      #     pylint --fail-under=9 $(git ls-files '*.py')
+      #     deactivate
+
+      # https://github.com/marketplace/actions/python-poetry-action#workflow-example-cache-the-virtual-environment
+      - name: Install poetry
+        uses: abatilo/actions-poetry@v2
+      # - name: Setup a local virtual environment (if no poetry.toml file)
+      #   run: |
+      #     poetry config virtualenvs.create true --local
+      #     poetry config virtualenvs.in-project true --local
+      # - uses: actions/cache@v3
+      #   name: Define a cache for the virtual environment based on the dependencies lock file
+      #   with:
+      #     path: ./.venv
+      #     key: venv-${{ hashFiles('poetry.lock') }}
+      - name: Install the project dependencies
+        run: poetry install
+      - name: Run pylint
         run: |
-          python -m pip install --upgrade pip
-          python -m venv venv
-          # https://stackoverflow.com/a/74669486
-          # https://docs.github.com/en/actions/using-workflows/workflow-commands-for-github-actions#setting-an-environment-variable
-          . venv/bin/activate
-          echo PATH=$PATH >> $GITHUB_ENV
-          pip install -U pip wheel setuptools
-          pip install pylint
-          pip install -r requirements.txt
-          # https://github.com/pylint-dev/pylint/blob/59194ebfa600b91ec4d5cef49370b7132b0413a3/pylint/lint/base_options.py#L153
-          pylint --fail-under=9 $(git ls-files '*.py')
-          deactivate
+          poetry add pylint
+          poetry run pylint --fail-under=9 $(git ls-files '*.py')
+          # 'cyclic imports' seems to be a false negative