Python: Stop/Start script on for ex. F6

I wanna control my Python script by pressing F6 to start/stop it, like in Counter-Strike wallhack or aimbot(i wanna use this script in game). Also when i end coding i extract this .py to .exe so it gonna be hided in system proceses. Code look like:

import x
import y

a = 0
b = 0
c = 0

while True:
    if 1:
    bla bla
    if 2:
    bla bla
    if 3:
    bla bla
    c = 0