Add Python 3.12 support (#286)

Add py3.12 to classifiers, change to setuptools, add setuptools to requirements

.github/workflows/ci.yml

@@ -9,7 +9,7 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        python-version: ["3.7", "3.8", "3.9", "3.10", "3.11", "pypy3.9"]
+        python-version: ["3.7", "3.8", "3.9", "3.10", "3.11", "3.12", "pypy3.9"]
         os: [ubuntu-latest]
     runs-on: ${{ matrix.os }}
     name: "${{ matrix.os }} Python: ${{ matrix.python-version }}"

bin/runbench.py

@@ -18,8 +18,8 @@
 
 
 def build_lib_dirname():
-    from distutils.dist import Distribution
-    from distutils.command.build import build
+    from setuptools import Distribution
+    from setuptools.command import build
     build_cmd = build(Distribution({"ext_modules": True}))
     build_cmd.finalize_options()
     return build_cmd.build_lib

requirements_test.txt

@@ -1 +1,2 @@
 pytest
+setuptools

setup.py

@@ -1,6 +1,6 @@
 import os
 import sys
-from distutils.core import setup, Extension
+from setuptools import setup, Extension
 
 ## Command-line argument parsing
 
@@ -121,6 +121,7 @@ def append_env(L, e):
         'Programming Language :: Python :: 3.9',
         'Programming Language :: Python :: 3.10',
         'Programming Language :: Python :: 3.11',
+        'Programming Language :: Python :: 3.12',
         'Programming Language :: Python :: 3 :: Only',
     ],
 )

tox.ini

@@ -1,7 +1,8 @@
 [tox]
-envlist = py{37,38,39,310,311}
+envlist = py{37,38,39,310,311,312}
 
 [testenv]
+allowlist_externals = {toxinidir}/bin/runtests.py
 commands = {toxinidir}/bin/runtests.py
 deps =
     pytest