Introduce tox instead of Makefile

.github/workflows/main.yml

@@ -14,9 +14,9 @@ jobs:
       uses: actions/setup-python@v3
       with:
         python-version: '3.x'
-        cache: pip
-        cache-dependency-path: requirements/dev.txt
+    - name: Install tox
+      run: pip install tox
     - name: Lint
-      run: make lint
+      run: tox -e lint
     - name: Test
-      run: make test
+      run: tox

.github/workflows/release.yml

@@ -16,14 +16,14 @@ jobs:
       uses: actions/setup-python@v3
       with:
         python-version: '3.x'
-        cache: pip
-        cache-dependency-path: .github/workflows/release.yml
+    - name: Install project
+      run: pip install .[dev]
     - name: Lint
-      run: make lint
+      run: tox -e lint
     - name: Test
-      run: make test
+      run: tox
     - name: Install build dependencies
-      run: pip install -U setuptools wheel build calver
+      run: pip install -U setuptools wheel build
     - name: Build
       run: python -m build .
     - name: Publish

.gitignore

@@ -2,3 +2,10 @@
 build/
 dist/
 *.egg-info/
+.tox/
+.venv/
+.env/
+env/
+venv/
+.idea/
+.vscode/

CONTRIBUTING.md

@@ -1,5 +1,5 @@
 # Contributing
-How to contributing to this package.
+How to contribute to this package.
 
 ## Running tests
 Run `make test`. This checks whether the auto-generated list of classifiers

pyproject.toml

@@ -20,6 +20,11 @@ dynamic = ["version"]
 [project.urls]
 Homepage = "https://github.com/pypa/trove-classifiers"
 
+[project.optional-dependencies]
+dev = [
+    "tox >= 4.0"
+]
+
 [tool.setuptools]
 package-dir = {"" = "src"}
 include-package-data = false

tox.ini

@@ -0,0 +1,43 @@
+[tox]
+envlist =
+    py311
+    py310
+    py39
+    py38
+    py37
+    lint
+    reformat
+
+isolated_build = true
+skip_missing_interpreters = true
+minversion = 4.0
+
+[testenv]
+description = run the tests with pytest under {envname}
+passenv =
+    PYTEST_*
+deps =
+    pytest >= 7.1
+commands =
+    pytest {posargs}
+    python -m tests.lib
+
+[testenv:lint]
+description = lint the code base
+skip_install = true
+deps =
+    black >= 22.12.0
+    mypy >= 0.991
+    natsort >= 8.2
+commands =
+    black --check bin src tests
+    python bin/sort.py src/trove_classifiers/__init__.py
+    mypy src
+
+[testenv:reformat]
+description = format the code base
+skip_install = true
+deps =
+    black >= 22.12.0
+commands =
+    black tests src