Keyboard input with timeout in while-loop [duplicate]

Code:

answer = None

def check():
    time.sleep(2)
    if answer != None:
        return
    print("Too Slow")

while True:
    current_kw = 0
    money = 100000  #100.000
    profit= current_kw * 300
    money += profit
    Thread(target = check).start()
    x = input('x: \n')
    ...

What I would like to achieve and what doesn't work:

Skip only works once instead of always

What I've tried:

See Code and Python 3 Timed Input

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