Add support for Python 3.12. (#122)

Add preliminary support for Python 3.13a2.

.github/workflows/tests.yml

@@ -20,13 +20,15 @@ jobs:
         - ["ubuntu", "ubuntu-20.04"]
         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"]
-        - ["3.12.0-rc.3",  "py312"]
+        - ["3.12",  "py312"]
+        - ["3.13.0-alpha - 3.13.0",  "py313"]
         - ["pypy-3.9", "pypy3"]
         - ["3.9",   "docs"]
         - ["3.9",   "coverage"]

.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 = "6f8d8c51"
 
 [python]
 with-pypy = true

CHANGES.rst

@@ -9,7 +9,9 @@
 
 - Drop support for deprecated ``python setup.py test.``.
 
-- Add preliminary support for Python 3.12b1.
+- Add support for Python 3.12.
+
+- Add preliminary support for Python 3.13a2.
 
 
 3.1.0 (2023-03-17)

setup.py

@@ -49,6 +49,7 @@ def _read_file(filename):
           "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",
           "Framework :: ZODB",

tox.ini

@@ -3,13 +3,15 @@
 [tox]
 minversion = 3.18
 envlist =
+    release-check
     lint
     py37
     py38
     py39
     py310
     py311
     py312
+    py313
     pypy3
     docs
     coverage
@@ -18,7 +20,7 @@ envlist =
 usedevelop = true
 package = wheel
 wheel_build_env = .pkg
-pip_pre = py312: true
+pip_pre = py313: true
 deps =
     zope.testrunner
     Sphinx
@@ -31,21 +33,31 @@ commands =
 extras =
     test
     docs
-
-[testenv:lint]
+[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 =
-    isort --check-only --diff {toxinidir}/src {toxinidir}/setup.py
-    flake8 src setup.py
     check-manifest
     check-python-versions
+    python -m build --sdist --no-isolation
+    twine check dist/*
+
+[testenv:lint]
+basepython = python3
+skip_install = true
 deps =
-    check-manifest
-    check-python-versions >= 0.19.1
-    wheel
-    flake8
     isort
+    flake8
+commands =
+    isort --check-only --diff {toxinidir}/src {toxinidir}/setup.py
+    flake8 src setup.py
 
 [testenv:isort-apply]
 basepython = python3