请教这段 C#的代码怎么改写成 Python

请教这段 C#的代码怎么改写成 Python

public class Encrypt
{
	public static string DoEncrypt(string ls_input)
	{
		MD5 mD = new MD5CryptoServiceProvider();
		ls_input = string.Format("aaa{0}bbb", ls_input);
		byte[] bytes = Encoding.Unicode.GetBytes(ls_input);
		byte[] array = mD.ComputeHash(bytes);
		string text = null;
		for (int i = 0; i < array.Length; i++)
		{
			text += array[i].ToString("x");
		}
		return string.Format("bkSystem_{0}", text);
	}
}

我自己写了一段,不过加密出来的值和 C#生成的值不一样,还请帮忙改下

import hashlib

data = '[{"lxdh":"134859393","content":"testbk"}]'

def encrypt(input):
    is_input = 'aaa%sbbb' %input
    print (is_input)
    is_input = hashlib.md5(is_input.encode('utf-8')).hexdigest()
    is_input = 'bkSystem_' + is_input

    print(is_input)


encrypt(data)