Add support for Python 3.14

Author: arthurdejong

.github/workflows/test.yml

@@ -14,7 +14,7 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        python-version: [3.8, 3.9, '3.10', 3.11, 3.12, 3.13, pypy3.9, pypy3.10]
+        python-version: [3.8, 3.9, '3.10', 3.11, 3.12, 3.13, 3.14, pypy3.9, pypy3.10]
         flavour: [signxml]
     steps:
       - uses: actions/checkout@v3

setup.py

@@ -64,6 +64,7 @@
         'Programming Language :: Python :: 3.11',
         'Programming Language :: Python :: 3.12',
         'Programming Language :: Python :: 3.13',
+        'Programming Language :: Python :: 3.14',
         'Programming Language :: Python :: Implementation :: PyPy',
         'Topic :: Security :: Cryptography',
         'Topic :: Software Development :: Libraries :: Python Modules',

tox.ini

@@ -1,5 +1,5 @@
 [tox]
-envlist = py{38,39,310,312,313,py,py3}-signxml,py{38,39,310,311,312,313,py3}{-legacy,-legacy-defusedxml,-lxml},flake8,mypy,docs,codespell
+envlist = py{38,39,310,312,313,314,py,py3}-signxml,py{38,39,310,311,312,313,314,py3}{-legacy,-legacy-defusedxml,-lxml},flake8,mypy,docs,codespell
 skip_missing_interpreters = true
 
 [testenv]