Run Python 3.13 CI tests

.github/workflows/ci.yml

@@ -114,6 +114,7 @@ jobs:
           - "3.10"
           - "3.11"
           - "3.12"
+          - "3.13"
 
     steps:
       - uses: actions/checkout@v4
@@ -167,14 +168,16 @@ jobs:
           # - "3.9"
           # - "3.10"
           # - "3.11"
-          - "3.12"
+          - "3.12"  # Comment out when 3.13 is final
+          - "3.13"
         group: [1, 2]
 
     steps:
       - uses: actions/checkout@v4
       - uses: actions/setup-python@v5
         with:
           python-version: ${{ matrix.python }}
+          allow-prereleases: true
 
       # We use C:\Temp (which is already available on the worker)
       # as a temporary directory for all of the tests because the

news/12620.trivial.rst

@@ -0,0 +1 @@
+Enable Python 3.13 CI tests

noxfile.py

@@ -67,7 +67,7 @@ def should_update_common_wheels() -> bool:
 # -----------------------------------------------------------------------------
 # Development Commands
 # -----------------------------------------------------------------------------
-@nox.session(python=["3.8", "3.9", "3.10", "3.11", "3.12", "pypy3"])
+@nox.session(python=["3.8", "3.9", "3.10", "3.11", "3.12", "3.13", "pypy3"])
 def test(session: nox.Session) -> None:
     # Get the common wheels.
     if should_update_common_wheels():

tests/requirements.txt

@@ -1,3 +1,4 @@
+cffi @ https://github.com/python-cffi/cffi/archive/refs/heads/main.zip; python_version > "3.12" # Temporary workaround for Python 3.13 until next CFFI release
 cryptography
 freezegun
 installer

tests/unit/test_cache.py

@@ -13,11 +13,11 @@ def test_falsey_path_none() -> None:
     assert wc.cache_dir is None
 
 
-def test_subdirectory_fragment() -> None:
+def test_subdirectory_fragment(tmp_path: Path) -> None:
     """
     Test the subdirectory URL fragment is part of the cache key.
     """
-    wc = WheelCache("/tmp/.foo/")
+    wc = WheelCache(os.fspath(tmp_path))
     link1 = Link("git+https://g.c/o/r#subdirectory=d1")
     link2 = Link("git+https://g.c/o/r#subdirectory=d2")
     assert wc.get_path_for_link(link1) != wc.get_path_for_link(link2)