Git issue 565: Support the free-threaded build of CPython 3.13

Author: Matthew Barnett

.github/workflows/main.yml

@@ -9,7 +9,7 @@ on:
 
 env:
   PYTHON_VER: '3.11'  # Python to run test/cibuildwheel
-  CIBW_BUILD: cp39-* cp310-* cp311-* cp312-* cp313-* cp314-*
+  CIBW_BUILD: cp39-* cp310-* cp311-* cp312-* cp313-* cp313t-* cp314-* cp314t-*
   CIBW_TEST_COMMAND: python -m unittest regex.test_regex
 
 jobs:

changelog.txt

@@ -1,3 +1,7 @@
+Version: 2025.9.18
+
+    Git issue 565: Support the free-threaded build of CPython 3.13
+
 Version: 2025.9.1
 
     Git PR 585: Fix AttributeError: 'AnyAll' object has no attribute '_key'

pyproject.toml

@@ -4,7 +4,7 @@ build-backend = "setuptools.build_meta"
 
 [project]
 name = "regex"
-version = "2025.9.1"
+version = "2025.9.18"
 description = "Alternative regular expression module, to replace re."
 readme = "README.rst"
 authors = [

regex_3/_regex.c

@@ -26405,6 +26405,10 @@ PyMODINIT_FUNC PyInit__regex(void) {
     if (!m)
         return NULL;
 
+#if defined(Py_GIL_DISABLED)
+    PyUnstable_Module_SetGIL(m, Py_MOD_GIL_NOT_USED);
+#endif
+
     d = PyModule_GetDict(m);
 
     x = PyLong_FromLong(RE_MAGIC);

regex_3/regex.py

@@ -241,7 +241,7 @@
   "VERSION1", "X", "VERBOSE", "W", "WORD", "error", "Regex", "__version__",
   "__doc__", "RegexFlag"]
 
-__version__ = "2.5.161"
+__version__ = "2.5.162"
 
 # --------------------------------------------------------------------
 # Public interface.

setup.py

@@ -2,8 +2,16 @@
 # -*- coding: utf-8 -*-
 from setuptools import setup, Extension
 from os.path import join
+import sysconfig
+
+macros = []
+free_threaded = sysconfig.get_config_var("Py_GIL_DISABLED")
+
+if free_threaded:
+    macros.append(("Py_GIL_DISABLED", "1"))
 
 setup(
     ext_modules=[Extension('regex._regex', [join('regex_3', '_regex.c'),
       join('regex_3', '_regex_unicode.c')])],
+      define_macros=macros,
 )