chore: add support for Python 3.14 (#758)

Author: willkg

.github/workflows/test.yml

@@ -9,14 +9,14 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        python-version: ["3.10", "3.11", "3.12", "3.13", "pypy3.10"]
+        python-version: ["3.10", "3.11", "3.12", "3.13", "3.14", "pypy3.10"]
         os: [ubuntu-latest, macos-latest, windows-latest]
 
     steps:
-      - uses: actions/checkout@08c6903cd8c0fde910a37f88322edcfb5dd907a8 # v4
+      - uses: actions/checkout@08c6903cd8c0fde910a37f88322edcfb5dd907a8  # v4
 
       - name: Set up Python ${{ matrix.python-version }}
-        uses: actions/setup-python@e797f83bcb11b83ae66e0230d6156d7c80228e7c # v5
+        uses: actions/setup-python@e797f83bcb11b83ae66e0230d6156d7c80228e7c  # v5
         with:
           python-version: ${{ matrix.python-version }}
 
@@ -26,7 +26,7 @@ jobs:
           echo "::set-output name=dir::$(pip cache dir)"
 
       - name: Cache
-        uses: actions/cache@0057852bfaa89a56745cba8c7296529d2fc39830 # v4
+        uses: actions/cache@0057852bfaa89a56745cba8c7296529d2fc39830  # v4
         with:
           path: ${{ steps.pip-cache.outputs.dir }}
           key:

setup.py

@@ -66,6 +66,7 @@ def get_version():
         "Programming Language :: Python :: 3.11",
         "Programming Language :: Python :: 3.12",
         "Programming Language :: Python :: 3.13",
+        "Programming Language :: Python :: 3.14",
         "Programming Language :: Python :: Implementation :: CPython",
         "Programming Language :: Python :: Implementation :: PyPy",
         "Topic :: Software Development :: Libraries :: Python Modules",

tox.ini

@@ -2,9 +2,9 @@
 
 [tox]
 envlist =
-    py{310,311,312,313,py3}
-    py{310,311,312,313,py3}-tinycss2
-    py{310,311,312,313}-build-no-lang
+    py{310,311,312,313,314,py3}
+    py{310,311,312,313,314,py3}-tinycss2
+    py{310,311,312,313,314}-build-no-lang
     py310-docs
     py310-format-check
     py310-lint
@@ -16,7 +16,8 @@ python =
     3.11: py311
     3.12: py312
     3.13: py313
-    pypy-3.9: pypy3
+    3.14: py314
+    pypy-3.10: pypy3
 
 [testenv]
 deps = -rrequirements-dev.txt
@@ -48,6 +49,12 @@ extras = css
 commands =
     pytest {posargs:-v}
 
+[testenv:py314-tinycss2]
+deps = -rrequirements-dev.txt
+extras = css
+commands =
+    pytest {posargs:-v}
+
 [testenv:pypy3-tinycss2]
 deps = -rrequirements-dev.txt
 extras = css
@@ -78,6 +85,12 @@ setenv =
 commands =
     python setup.py build
 
+[testenv:py314-build-no-lang]
+setenv =
+    LANG=
+commands =
+    python setup.py build
+
 [testenv:py310-lint]
 changedir = {toxinidir}
 deps = -rrequirements-flake8.txt