Specify build backend

.github/workflows/release.yml

@@ -19,11 +19,11 @@ jobs:
       - name: Install dependencies
         run: |
           python -m pip install --upgrade pip
-          pip install setuptools wheel twine
+          pip install build twine
       - name: Build and publish
         env:
           TWINE_USERNAME: "__token__"
           TWINE_PASSWORD: ${{ secrets.PYPI_TOKEN }}
         run: |
-          python setup.py sdist bdist_wheel
+          python -m build --outdir dist .
           twine upload dist/*

CONTRIBUTING.md

@@ -5,7 +5,7 @@ To create a development environment and install the development dependencies, ru
 ```bash
 python3 -m venv venv
 . venv/bin/activate
-pip install --upgrade pip setuptools
+pip install --upgrade pip
 pip install '.[dev]'
 pre-commit install --install-hooks
 ```

pyproject.toml

@@ -1,3 +1,7 @@
+[build-system]
+requires = ["setuptools"]
+build-backend = "setuptools.build_meta"
+
 [tool.black]
 line-length = 88
 target-version = ['py36', 'py37', 'py38', 'py39', 'py310', 'py310']