enable free threading

Author: maxbachmann

CHANGELOG.rst

@@ -1,6 +1,14 @@
 Changelog
 ---------
 
+[3.15.0] - 2025-10-30
+^^^^^^^^^^^^^^^^^^^^^
+
+Changed
+~~~~~~~
+* upgrade to ``Cython==3.1.6``
+* enable free threading
+
 [3.14.1] - 2025-09-08
 ^^^^^^^^^^^^^^^^^^^^^
 Fixed

pyproject.toml

@@ -1,7 +1,7 @@
 [build-system]
 requires = [
     "scikit-build-core>=0.11",
-    "Cython >=3.0.12, <3.2.0"
+    "Cython >=3.1.6, <3.2.0"
 ]
 build-backend = "scikit_build_core.build"
 

src/rapidfuzz/_feature_detector_cpp.pyx

@@ -1,3 +1,5 @@
+#cython: freethreading_compatible = True
+
 from libc.stdint cimport uint32_t
 
 cdef extern from "FeatureDetector/CpuInfo.hpp":

src/rapidfuzz/distance/_initialize_cpp.pyx

@@ -1,3 +1,5 @@
+#cython: freethreading_compatible = True
+
 from cpp_common cimport EditType, RfEditOp, RfOpcode, convert_string, is_valid_string
 from cpython.list cimport PyList_New, PyList_SET_ITEM
 from cpython.pycapsule cimport PyCapsule_GetPointer, PyCapsule_IsValid, PyCapsule_New

src/rapidfuzz/distance/metrics_cpp.pyx

@@ -1,3 +1,5 @@
+#cython: freethreading_compatible = True
+
 from . import metrics_py
 from ._initialize_cpp import Editops
 import sys

src/rapidfuzz/fuzz_cpp.pyx

@@ -1,3 +1,5 @@
+#cython: freethreading_compatible = True
+
 from . import fuzz_py
 from .distance._initialize_cpp import ScoreAlignment
 

src/rapidfuzz/process_cpp_impl.pyx

@@ -1,3 +1,5 @@
+#cython: freethreading_compatible = True
+
 from rapidfuzz.fuzz import WRatio, ratio
 
 from . import process_py

src/rapidfuzz/utils_cpp.pyx

@@ -1,3 +1,5 @@
+#cython: freethreading_compatible = True
+
 from cpp_common cimport (
     CreateProcessorContext,
     SetProcessorAttrs,

tools/sdist.patch

@@ -6,7 +6,7 @@ index 517f32d..1e855ed 100644
  [build-system]
  requires = [
 -    "scikit-build-core>=0.11",
--    "Cython >=3.0.12, <3.2.0"
+-    "Cython >=3.1.6, <3.2.0"
 +    "scikit-build-core>=0.11"
  ]
  build-backend = "scikit_build_core.build"