Modern linting and packaging tooling and config

.github/workflows/testing.yml

@@ -15,15 +15,15 @@ jobs:
       uses: actions/setup-python@v4
       with:
         python-version: 3.11
-    - name: Install ruff
+    - name: Install pre-commit
       shell: bash
       run: |
         python -V
-        python -m pip install ruff
-    - name: Run ruff
+        python -m pip install pre-commit
+    - name: Run pre-commit linters
       shell: bash
       run: |
-        ruff .
+        pre-commit run --files *
 
   build:
     strategy:

.pre-commit-config.yaml

@@ -0,0 +1,16 @@
+repos:
+-   repo: https://github.com/pre-commit/pre-commit-hooks
+    rev: v4.5.0
+    hooks:
+    -   id: check-yaml
+    -   id: end-of-file-fixer
+    -   id: trailing-whitespace
+-   repo: https://github.com/psf/black
+    rev: 23.9.1
+    hooks:
+    -   id: black
+-   repo: https://github.com/astral-sh/ruff-pre-commit
+    rev: v0.0.292
+    hooks:
+    -   id: ruff
+        args: ["--fix", "--show-source"]

dev-requirements.txt

@@ -1,5 +1,7 @@
-# Dependencies for running the tests with pytest
+# Linting tools
 ruff
+pre-commit
+# Dependencies for running the tests with pytest
 pytest
 pytest-cov
 psutil

pyproject.toml

@@ -0,0 +1,39 @@
+[build-system]
+requires = ["flit_core"]
+build-backend = "flit_core.buildapi"
+
+[tool.flit.metadata]
+module = "cloudpickle"
+author = "The cloudpickle developer team"
+author-email='[email protected]'
+home-page = "https://github.com/cloudpipe/cloudpickle"
+description-file = "README.md"
+requires-python = ">=3.8"
+license = "BSD-3-Clause"
+classifiers = [
+    'Development Status :: 5 - Production/Stable',
+    'Intended Audience :: Developers',
+    'License :: OSI Approved :: BSD License',
+    'Operating System :: POSIX',
+    'Operating System :: Microsoft :: Windows',
+    'Operating System :: MacOS :: MacOS X',
+    'Programming Language :: Python :: 3.8',
+    'Programming Language :: Python :: 3.9',
+    'Programming Language :: Python :: 3.10',
+    'Programming Language :: Python :: 3.11',
+    'Programming Language :: Python :: 3.12',
+    'Programming Language :: Python :: Implementation :: CPython',
+    'Programming Language :: Python :: Implementation :: PyPy',
+    'Topic :: Software Development :: Libraries :: Python Modules',
+    'Topic :: Scientific/Engineering',
+    'Topic :: System :: Distributed Computing',
+]
+
+[tool.black]
+line-length = 88
+target_version = ['py38', 'py39', 'py310', 'py311', 'py312']
+preview = true
+
+[tool.ruff]
+line-length = 88
+target-version = "py38"