如何通过subprocess.check_output()获得超时命令的输出？

import subprocess
import signal

def run_command_with_timeout(command, timeout):
    process = subprocess.Popen(command, stdout=subprocess.PIPE, stderr=subprocess.PIPE, shell=True)
    try:
        output, error = process.communicate(timeout=timeout)
        return output.decode("utf-8") if output else None
    except subprocess.TimeoutExpired:
        process.kill()
        return None

command = "your_command"  # 替换为要执行的命令
timeout = 10  # 设置超时时间，单位为秒

output = run_command_with_timeout(command, timeout)
if output:
    print("命令输出:", output)
else:
    print("命令执行超时")