如何在Python中以编程方式更改用户的密码，而不需要交互提示？

import subprocess

new_password = "new_password"
command = ["passwd", "-stdin"]
process = subprocess.run(command, input=new_password.encode(), text=True, capture_output=True)

if process.returncode == 0:
    print("密码已成功更改！")
else:
    print("更改密码时出现错误：", process.stderr)

import subprocess

def change_password(username, new_password):
    command = ["passwd", username, "-stdin"]
    process = subprocess.run(command, input=new_password.encode(), text=True, capture_output=True)
    if process.returncode == 0:
        print("密码已成功更改！")
    else:
        print("更改密码时出现错误：", process.stderr)

# 示例用法
username = "user"
new_password = "new_password"
change_password(username, new_password)