feat: build abi3 wheel

.github/workflows/build.yml

@@ -35,6 +35,9 @@ jobs:
         with:
           package-dir: ./PythonAPI
 
+      - name: Run abi3audit
+        run: uvx abi3audit --report ./wheelhouse/*-abi3-*.whl
+
       - uses: actions/upload-artifact@v4
         with:
           name: pycocotools-${{ matrix.os }}-${{ matrix.cibw_archs }}-${{ strategy.job-index }}

PythonAPI/setup.py

@@ -1,17 +1,33 @@
 """To compile and install locally run "python setup.py build_ext --inplace".
 To install library to Python site-packages run "python -m pip install --use-feature=in-tree-build ."
 """
+import platform
+import sys
+import sysconfig
 from pathlib import Path
 from setuptools import setup, Extension
 
 import numpy as np
 from Cython.Build import cythonize
 
+py_gil_disabled = sysconfig.get_config_var('Py_GIL_DISABLED')
+use_limited_api = not py_gil_disabled and platform.python_implementation() == 'CPython' and sys.version_info >= (3, 12)
+if use_limited_api:
+    limited_api_args = {
+        "py_limited_api": True,
+        "define_macros": [("Py_LIMITED_API", "0x030C0000")],
+    }
+    options = {"bdist_wheel": {"py_limited_api": "cp312"}}
+else:
+    limited_api_args = {}
+    options = {}
+
 ext_modules = [
         Extension(
             'pycocotools._mask',
             sources=['./common/maskApi.c', 'pycocotools/_mask.pyx'],
             include_dirs=[np.get_include(), './common'],
+            **limited_api_args
         )
     ]
 
@@ -36,6 +52,7 @@
     extras_require={
         'all': ['matplotlib>=2.1.0'],
     },
-    version='2.0.9',
+    version='2.0.10',
     ext_modules=cythonize(ext_modules),
+    options=options,
 )