How to create a timed input in python with a correct answer?

Question

How would I create a program which asks the user for an input but if they dont respond with an answer within 5 seconds tells them that the time is up. But if the user gets the question right within the 5 seconds tells them that its right?

This is the code I have tried:

user_answer = None
def check():
if user_answer == 10:
  print("Good")
  return
time.sleep(5)
if user_answer != None:
    return
print("Too Slow")

Thread(target = check).start()

user_answer = int(input("5+5 = "))

Answer 1

You check bring the check into in the same thread as int(input("5+5 = ")) and leave the check() for checking timeout only. If the user entered input or timeout, you can use os_exit(status_code) to terminate the entire application

import os
import time
from threading import Thread

timeout = 3
user_answer = None
def check_timeout():
    time.sleep(timeout)
    if user_answer != None:
        return
    print("\nToo Slow")
    os._exit(0)

thread = Thread(target = check_timeout)
thread.start()

def check_anwser():
    if user_answer == 10:
      print("Good")
      return
    if user_answer != None:
      print("Wrong")
      return
user_answer = int(input("5+5 = "))
check_anwser()
os._exit(0)