Trying alternatives to while True: on Python3 and M B C and MotorBridge.py

def StepperMotorATest():
    motor.StepperMotorAInit()
    if a == 22 or a == 1:
        motor.StepperMotorAMove(-1000, 1000)
        time.sleep(2)
        motor.StepperMotorAMove(1000, 1000)
        time.sleep(2)
    elif a == 45 or a <= 0:
        motor.StepperMotorAMove(-4500, 1000)
        time.sleep(2)
        motor.StepperMotorAMove(4500, 1000)
        time.sleep(2)
    else:
        motor.StepperMotorAMove(500, 1000)
        time.sleep(2)
        motor.StepperMotorAMove(-500, 1000)
        time.sleep(2)
    #motor.StepperMotorAMove(-4500, 1000)
    #time.sleep(4)
    #motor.StepperMotorAMove(4500, 1000)
    #time.sleep(4)

def StepperMotorBTest():
    motor.StepperMotorBInit()
    if b == 45 or b == 1:
        motor.StepperMotorBMove(4500, 1000)
        time.sleep(2)
        motor.StepperMotorBMove(-4500, 1000)
        time.sleep(2)
    elif b == 22 or b <= 0:
        motor.StepperMotorBMove(-1000, 1000)
        time.sleep(2)
        motor.StepperMotorBMove(1000, 1000)
        time.sleep(2)
    else:
        pass
    #motor.StepperMotorBMove(4500, 1000)
    #time.sleep(4)
    #motor.StepperMotorBMove(-4500, 1000)
    #time.sleep(4)

try:

    if __name__=="__main__":
        motor = MotorBridge.MotorBridgeCape()
        while True:
            StepperMotorATest()
            StepperMotorBTest()

except KeyboardInterrupt:
    print("Making Headway?")