Test with Python 3.15 alpha releases (#13654)

Author: AA-Turner

.github/workflows/main.yml

@@ -89,6 +89,7 @@ jobs:
       matrix:
         python:
         - "3.14"
+        - "3.15"
         docutils:
         - "0.20"
         - "0.21"
@@ -125,6 +126,7 @@ jobs:
       matrix:
         python:
         - "3.14"
+        - "3.15"
 
     steps:
     - uses: actions/checkout@v4

pyproject.toml

@@ -39,6 +39,7 @@ classifiers = [
     "Programming Language :: Python :: 3.12",
     "Programming Language :: Python :: 3.13",
     "Programming Language :: Python :: 3.14",
+    "Programming Language :: Python :: 3.15",
     "Programming Language :: Python :: Implementation :: CPython",
     "Programming Language :: Python :: Implementation :: PyPy",
     "Framework :: Sphinx",

tox.ini

@@ -1,6 +1,6 @@
 [tox]
 minversion = 4.2.0
-envlist = py{311,312,313,314}
+envlist = py{311,312,313,314,315}
 
 [testenv]
 usedevelop = True
@@ -19,7 +19,7 @@ passenv =
     BUILDER
     READTHEDOCS
 description =
-    py{311,312,313,314}: Run unit tests against {envname}.
+    py{311,312,313,314,315}: Run unit tests against {envname}.
 dependency_groups =
     test
 setenv =