一段时间后结束程序

Question

我必须为学校制定一个程序，与用户讨论某些事情。它应该运行至少3分钟。我想实现一些在3分钟后停止程序的东西。

在 PROGRAM_DURATION

中指定的秒数后，我的代码似乎没有结束程序

import time

start = time.time()

PROGRAM_DURATION = 180

x = 1
while x == 1:
    if time.time() < start + PROGRAM_DURATION:
        print("Hello")
        chat()
    else:
        print("We're out of time")
        break

我尝试从代码中删除 chat（），但程序在给定时间后仍未完成

修改 这是从我的程序粘贴的确切代码副本：     进口时间

start = time.time()

PROGRAM_DURATION = 5 #set to 5 to check if it works

x = 1
while x == 1:
    if time.time() < start + PROGRAM_DURATION:
        print("greeting")
        print("What is your name")
        name = input()
        print("Hi,",name,"nice to meet you")
        print("Lets talk")
        chat() #function which lets the user chose what the subject will be

    else:
        print("Well,",name,"we have run out of time")
        print("Thanks for talking to me")
        break