请教下用 Python 如何实现这段代码

[Linxing]

public static byte[] marshallInt(int num,int length) {//marshall int
byte[] byteStream = new byte[length];
for (int i = 0; i < length; i++) {
byteStream[i] = (byte) (num >>> ((length-1)*8 - i * 8));
}
return byteStream;

困扰了我一天了 还没有解决 谢谢了