Function PyArray_ByteorderConverter

numpy/core/src/multiarray/conversion_utils.c:530–535

NUMPY_API * Convert object to endian */

 * Convert object to endian
 */
NPY_NO_EXPORT int
PyArray_ByteorderConverter(PyObject *obj, char *endian)
{
    return string_converter_helper(
        obj, (void *)endian, byteorder_parser, "byteorder", "not recognized");
}

static int sortkind_parser(char const *str, Py_ssize_t length, void *data)
{