Python에서 사용자 입력에 대한 시간 제한을 구현하는 방법은 무엇입니까?

import signal

def raw_input_with_timeout(prompt, timeout):
    signal.alarm(timeout)
    try:
        return input(prompt)
    except KeyboardInterrupt:
        return None
    finally:
        signal.alarm(0)  # Reset alarm to avoid interference

import threading

def raw_input_with_timeout(prompt, timeout):
    print(prompt, end=' ')
    timer = threading.Timer(timeout, thread.interrupt_main)
    result = None
    try:
        timer.start()
        result = input(prompt)
    except KeyboardInterrupt:
        pass
    timer.cancel()
    return result

import msvcrt
import time

def raw_input_with_timeout(prompt, timeout):
    print(prompt, end=' ')
    finishat = time.time() + timeout
    result = []
    while True:
        if msvcrt.kbhit():
            result.append(msvcrt.getche())
            if result[-1] == '\r':
                return ''.join(result)
            time.sleep(0.1)
        else:
            if time.time() > finishat:
                return None