feat: Add support for Python 3.12 (#1052)

Fixes #1044

.github/workflows/checks.yml

@@ -35,7 +35,7 @@ jobs:
 
     strategy:
       matrix:
-        python-version: ['3.8', '3.9', '3.10', '3.11']
+        python-version: ['3.8', '3.9', '3.10', '3.11', '3.12']
 
     steps:
     - name: Checkout repository
@@ -109,7 +109,7 @@ jobs:
 
     strategy:
       matrix:
-        python-version: ['3.8', '3.9', '3.10', '3.11']
+        python-version: ['3.8', '3.9', '3.10', '3.11', '3.12']
 
     steps:
     - name: Checkout repository
@@ -173,7 +173,7 @@ jobs:
 
 #     strategy:
 #       matrix:
-#         python-version: ['3.8', '3.9', '3.10']
+#         python-version: ['3.8', '3.9', '3.10', '3.11', '3.12']
 
 #     steps:
 #     - name: Checkout repository

docker/dev.Dockerfile

@@ -24,7 +24,10 @@ RUN apt-get update --fix-missing && \
         libxslt-dev \
         python3.11 \
         python3.11-dev \
-        python3.11-distutils && \
+        python3.11-distutils \
+        python3.12 \
+        python3.12-dev \
+        python3.12-distutils && \
     rm -rf /var/lib/apt/lists/* /var/log/dpkg.log && \
     apt-get autoremove -y && \
     apt-get clean -y

setup.cfg

@@ -22,11 +22,11 @@ classifiers =
 	Topic :: Text Processing
 	Topic :: Text Processing :: Markup :: XML
 	License :: OSI Approved :: BSD License
-	Programming Language :: Python :: 3
 	Programming Language :: Python :: 3.8
 	Programming Language :: Python :: 3.9
 	Programming Language :: Python :: 3.10
 	Programming Language :: Python :: 3.11
+	Programming Language :: Python :: 3.12
 
 [options]
 packages = xml2rfc, xml2rfc/writers, xml2rfc/util, xml2rfc/uniscripts, xml2rfc/data, xml2rfc/templates

tox.ini

@@ -13,6 +13,7 @@ python =
     3.9: py39
     3.10: py310
     3.11: py311
+    3.12: py312
 
 [gh-actions:env]
 PLATFORM =