Python:如何在超时后终止命令

import subprocess
import time

def run_command(command, timeout):
    # 创建子进程并执行命令
    process = subprocess.Popen(command, shell=True)
    
    # 等待命令执行完成或超时
    start_time = time.time()
    while process.poll() is None:
        time.sleep(0.1)
        if time.time() - start_time > timeout:
            # 超时终止命令
            process.terminate()
            return "Command timed out"
    
    # 获取命令执行结果
    return process.returncode

# 示例调用
command = "your_command_here"
timeout = 10  # 超时时间为10秒
result = run_command(command, timeout)
print(result)