Add Python 3.12 support; drop Python 3.7 support

.github/workflows/tests.yml

@@ -17,30 +17,32 @@ jobs:
       fail-fast: false
       matrix:
         os:
-        - ["ubuntu", "ubuntu-20.04"]
+        - ["ubuntu", "ubuntu-latest"]
         config:
         # [Python version, tox env]
+        - ["3.9",   "release-check"]
         - ["3.9",   "lint"]
         - ["3.7",   "py37"]
         - ["3.8",   "py38"]
         - ["3.9",   "py39"]
         - ["3.10",  "py310"]
         - ["3.11",  "py311"]
-        - ["pypy-3.9", "pypy3"]
+        - ["3.12",  "py312"]
+        - ["pypy-3.10", "pypy3"]
         - ["3.9",   "docs"]
         - ["3.9",   "coverage"]
 
     runs-on: ${{ matrix.os[1] }}
     if: github.event_name != 'pull_request' || github.event.pull_request.head.repo.full_name != github.event.pull_request.base.repo.full_name
     name: ${{ matrix.config[1] }}
     steps:
-    - uses: actions/checkout@v3
+    - uses: actions/checkout@v4
     - name: Set up Python
-      uses: actions/setup-python@v4
+      uses: actions/setup-python@v5
       with:
         python-version: ${{ matrix.config[0] }}
     - name: Pip cache
-      uses: actions/cache@v3
+      uses: actions/cache@v4
       with:
         path: ~/.cache/pip
         key: ${{ runner.os }}-pip-${{ matrix.config[0] }}-${{ hashFiles('setup.*', 'tox.ini') }}

.meta.toml

@@ -2,7 +2,7 @@
 # https://github.com/zopefoundation/meta/tree/master/config/pure-python
 [meta]
 template = "pure-python"
-commit-id = "b21fbbf2"
+commit-id = "7713fd86"
 
 [python]
 with-windows = false

CHANGES.rst

@@ -5,7 +5,7 @@
 4.1 (unreleased)
 ================
 
-- Nothing changed yet.
+- Add support for Python 3.12.
 
 
 4.0 (2023-05-05)

setup.cfg

@@ -1,7 +1,5 @@
 # Generated from:
 # https://github.com/zopefoundation/meta/tree/master/config/pure-python
-[bdist_wheel]
-universal = 0
 
 [flake8]
 doctests = 1

setup.py

@@ -67,6 +67,7 @@
         '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',
         'Operating System :: OS Independent',

tox.ini

@@ -3,12 +3,14 @@
 [tox]
 minversion = 3.18
 envlist =
+    release-check
     lint
     py37
     py38
     py39
     py310
     py311
+    py312
     pypy3
     docs
     coverage
@@ -18,25 +20,39 @@ usedevelop = true
 package = wheel
 wheel_build_env = .pkg
 deps =
+setenv =
+    py312: VIRTUALENV_PIP=23.1.2
+    py312: PIP_REQUIRE_VIRTUALENV=0
 commands =
     zope-testrunner --test-path=src {posargs:-vc}
 extras =
     test
+[testenv:release-check]
+description = ensure that the distribution is ready to release
+basepython = python3
+skip_install = true
+deps =
+    twine
+    build
+    check-manifest
+    check-python-versions >= 0.20.0
+    wheel
+commands_pre =
+commands =
+    check-manifest
+    check-python-versions --only setup.py,tox.ini,.github/workflows/tests.yml
+    python -m build --sdist --no-isolation
+    twine check dist/*
 
 [testenv:lint]
 basepython = python3
 skip_install = true
+deps =
+    isort
+    flake8
 commands =
     isort --check-only --diff {toxinidir}/src {toxinidir}/setup.py
     flake8 src setup.py
-    check-manifest
-    check-python-versions
-deps =
-    check-manifest
-    check-python-versions >= 0.19.1
-    wheel
-    flake8
-    isort
 
 [testenv:isort-apply]
 basepython = python3