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is used for function parameter transfer, so PyObject_GetAttrString cannot be used
PyByteArray_FromStringAndSize or Py_BuildValue first converts char * into bytesThen PyTuple_SetItem converts bytes into tuple
PyObject * bytesObject = PyByteArray_FromStringAndSize(message, len); PyObject * buildObject = Py_BuildValue("y#", message,len); PyObject * argsObject = PyTuple_New(1); PyTuple_SetItem(argsObject, 0, bytesObject);
![[Web front-end] Node.js quick start](https://img.php.cn/upload/course/000/000/067/662b5d34ba7c0227.png)
PyByteArray_FromStringAndSize or Py_BuildValue first converts char * into bytes
Then PyTuple_SetItem converts bytes into tuple