Index: blender-3.3.0/source/blender/python/mathutils/mathutils.c ================================================================ --- blender-3.3.0.original/source/blender/python/mathutils/mathutils.c 2022-07-28 14:26:24.000000000 -0700 +++ blender-3.3.0/source/blender/python/mathutils/mathutils.c 2022-09-10 09:30:39.263124741 -0700 @@ -76,7 +76,11 @@ Py_hash_t mathutils_array_hash(const flo x = 0x345678UL; i = 0; while (--len >= 0) { +#if PY_VERSION_HEX >= 0x30a0000 /* Version: 3.10. */ y = _Py_HashDouble(NULL, (double)(array[i++])); +#else + y = _Py_HashDouble(NULL, (double)(array[i++])); +#endif if (y == -1) { return -1; }