如何在python中子进程命令自动输入密码？

import subprocess

def execute_command_with_password(command, password):
    process = subprocess.Popen(command, stdin=subprocess.PIPE, stdout=subprocess.PIPE, stderr=subprocess.PIPE, shell=True)
    process.stdin.write(password.encode('utf-8'))
    process.stdin.write(b'\n')
    process.stdin.flush()
    output, error = process.communicate()
    return output.decode('utf-8')

password = "your_password"
command = "your_command"

output = execute_command_with_password(command, password)
print(output)