Add Python 3.12 support.

Also update pre-commit tool versions.

Closes #2.

.pre-commit-config.yaml

@@ -1,11 +1,11 @@
 repos:
 - repo: https://github.com/tox-dev/pyproject-fmt
-  rev: "1.1.0"
+  rev: "1.2.0"
   hooks:
     - id: pyproject-fmt
 # Ruff must be run before Black, so Black can reformat fixes made by Ruff
 - repo: https://github.com/astral-sh/ruff-pre-commit
-  rev: v0.0.290
+  rev: v0.0.292
   hooks:
     - id: ruff
       args: [--fix, --exit-non-zero-on-fix]

changelog.d/2.adding.md

@@ -0,0 +1 @@
+Added Python 3.12 support.

pyproject.toml

@@ -26,6 +26,7 @@ classifiers = [
   "Programming Language :: Python :: 3.9",
   "Programming Language :: Python :: 3.10",
   "Programming Language :: Python :: 3.11",
+  "Programming Language :: Python :: 3.12",
   "Typing :: Typed",
 ]
 dynamic = [
@@ -80,7 +81,7 @@ packages = [
 ]
 
 [tool.hatch.envs.default]
-python = "3.11"
+python = "3.12"
 
 [tool.hatch.envs.lint]
 dependencies = [

workflow-support/make_ci_image.sh

@@ -38,7 +38,7 @@ build_cmd_with_source() {
 build_cmd apt update --quiet=2
 build_cmd apt install --yes --quiet=2 "${lint_deps[@]}" "${proj_deps[@]}" "${proj_build_deps[@]}"
 
-build_cmd pip3.11 install git+https://github.com/pypa/hatch
+build_cmd pip3.12 install git+https://github.com/pypa/hatch
 
 for env in "${hatchenvs[@]}"; do
     # this looks weird... but it causes Hatch to create the env,