如何在给定时间后终止程序在Python中的运行 [英] How to end program running after given time in Python

问题描述

我希望我的Python程序在给定的秒数内运行算法，然后显示到目前为止的最佳结果并结束.

I'd like my Python program to run an algorithm for a given number of seconds and then to print the best result so far and to end.

这样做的最好方法是什么?

What is the best way to do so?

我尝试了以下操作，但没有成功(打印后程序仍在运行):

I tried the following but it did not work(the program kept running after the printing):

def printBestResult(self):
    print(self.bestResult)
    sys.exit()

def findBestResult(self,time):
    self.t = threading.Timer(time, self.printBestResult)
    self.t.start() 

    while(1):
        # find best result

推荐答案

未经测试的代码，但是像这样?

Untested code, but something like this?

import time    
threshold = 60
start = time.time()

best_run = threshold
while time.time()-start < threshold:
   run_start = time.time()
   doSomething()
   run_time = time.time() - start
   if run_time < best_run:
       best_run = run_time

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