From fb660fa93c7043b4e9ffa293c769957912119db8 Mon Sep 17 00:00:00 2001
From: Will Kahn-Greene <willkg@mozilla.com>
Date: Wed, 23 Oct 2024 15:51:42 -0400
Subject: [PATCH] Add support for Python 3.13 (#736)

---
 .github/workflows/test.yml |  2 +-
 CHANGES                    |  2 +-
 setup.py                   |  1 +
 tox.ini                    | 19 ++++++++++++++++---
 4 files changed, 19 insertions(+), 5 deletions(-)

diff --git a/.github/workflows/test.yml b/.github/workflows/test.yml
index 909c6f6c..7beeb066 100644
--- a/.github/workflows/test.yml
+++ b/.github/workflows/test.yml
@@ -9,7 +9,7 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        python-version: ["3.9", "3.10", "3.11", "3.12", "pypy3.9"]
+        python-version: ["3.9", "3.10", "3.11", "3.12", "3.13", "pypy3.9"]
         os: [ubuntu-latest, macos-latest, windows-latest]
 
     steps:
diff --git a/CHANGES b/CHANGES
index 528e7bd2..74a5d2d4 100644
--- a/CHANGES
+++ b/CHANGES
@@ -13,7 +13,7 @@ None
 
 **Bug fixes**
 
-None
+* Add support for Python 3.13. (#736)
 
 
 Version 6.1.0 (October 6th, 2023)
diff --git a/setup.py b/setup.py
index 35cb6cb4..9f2e1619 100755
--- a/setup.py
+++ b/setup.py
@@ -67,6 +67,7 @@ def get_version():
         "Programming Language :: Python :: 3.10",
         "Programming Language :: Python :: 3.11",
         "Programming Language :: Python :: 3.12",
+        "Programming Language :: Python :: 3.13",
         "Programming Language :: Python :: Implementation :: CPython",
         "Programming Language :: Python :: Implementation :: PyPy",
         "Topic :: Software Development :: Libraries :: Python Modules",
diff --git a/tox.ini b/tox.ini
index e6c4bc25..40002074 100644
--- a/tox.ini
+++ b/tox.ini
@@ -2,9 +2,9 @@
 
 [tox]
 envlist =
-    py{39,310,311,312,py3}
-    py{39,310,311,312,py3}-tinycss2
-    py{39,310,311,312}-build-no-lang
+    py{39,310,311,312,313,py3}
+    py{39,310,311,312,313,py3}-tinycss2
+    py{39,310,311,312,313}-build-no-lang
     py39-docs
     py39-format-check
     py39-lint
@@ -16,6 +16,7 @@ python =
     3.10: py310
     3.11: py311
     3.12: py312
+    3.13: py313
     pypy-3.9: pypy3
 
 [testenv]
@@ -48,6 +49,12 @@ extras = css
 commands =
     pytest {posargs:-v}
 
+[testenv:py313-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:py313-build-no-lang]
+setenv =
+    LANG=
+commands =
+    python setup.py build
+
 [testenv:py39-lint]
 changedir = {toxinidir}
 deps = -rrequirements-flake8.txt