Support Python 3.13

.github/workflows/ci.yml

@@ -18,6 +18,7 @@ jobs:
             {python-version: "3.10", toxenv: "py310"},
             {python-version: "3.11", toxenv: "py311"},
             {python-version: "3.12", toxenv: "py312"},
+            {python-version: "3.13", toxenv: "py313"},
             {python-version: "pypy3.9", toxenv: "pypy39"},
             {python-version: "pypy3.10", toxenv: "pypy310"},
           ]

pyproject.toml

@@ -27,6 +27,7 @@ classifiers = [
     "Programming Language :: Python :: 3.10",
     "Programming Language :: Python :: 3.11",
     "Programming Language :: Python :: 3.12",
+    "Programming Language :: Python :: 3.13",
 ]
 requires-python = ">=3.9"
 dynamic = ["version"]

tests/test_parallel.py

@@ -44,22 +44,10 @@ def test_cache_cleared_by_other_process(
     extract("google.com")
     orig_unlink = os.unlink
 
-    def is_relative_to(path: Path, other_path: str | Path) -> bool:
-        """Return True if path is relative to other_path or False.
-
-        Taken from the Python 3.9 standard library.
-        Reference: https://docs.python.org/3/library/pathlib.html#pathlib.PurePath.is_relative_to
-        """
-        try:
-            path.relative_to(other_path)
-            return True
-        except ValueError:
-            return False
-
     def evil_unlink(filename: str | Path) -> None:
         """Simulate someone deletes the file right before we try to."""
         if (isinstance(filename, str) and filename.startswith(cache_dir)) or (
-            isinstance(filename, Path) and is_relative_to(filename, cache_dir)
+            isinstance(filename, Path) and filename.is_relative_to(cache_dir)
         ):
             orig_unlink(filename)
         orig_unlink(filename)

tox.ini

@@ -1,5 +1,5 @@
 [tox]
-envlist = py{39,310,311,312,py39,py310},codestyle,lint,typecheck
+envlist = py{39,310,311,312,313,py39,py310},codestyle,lint,typecheck
 
 [testenv]
 commands = pytest {posargs}