Micro:bit(fan_spinning)

from microbit import *
import time

Strek1 = Image("00009:"
                "00090:"
                "00900:"
                "09000:"
                "90000:")
Strek2 = Image("00000:"
                "00099:"
                "00900:"
                "99000:"
                "00000:")
Strek3 = Image("00000:"
                "00000:"
                "99999:"
                "00000:"
                "00000:")
Strek4 = Image("00000:"
                "99000:"
                "00900:"
                "00099:"
                "00000:")
Strek5 = Image("90000:"
                "09000:"
                "00900:"
                "00090:"
                "00009:")
Strek6 = Image("09000:"
                "09000:"
                "00900:"
                "00090:"
                "00090:")
Strek7 = Image("00900:"
                "00900:"
                "00900:"
                "00900:"
                "00900:")
Strek8 = Image("00090:"
                "00090:"
                "00900:"
                "09000:"
                "09000:")
time_sleep = 0.03
while True:
    if time_sleep <= 0.001:
        time_sleep = 0.03

    if button_b.is_pressed():
        time_sleep += 0.05
        time_sleep = time_sleep
    elif button_a.is_pressed():
        time_sleep -= 0.05
        time_sleep = time_sleep
        if time_sleep <= 0.001:
            time_sleep = 0.03
    display.show(Strek1)
    display.clear
    time.sleep(time_sleep)
    if button_b.is_pressed():
        time_sleep += 0.05
        time_sleep = time_sleep
    elif button_a.is_pressed():
        time_sleep -= 0.05
        time_sleep = time_sleep
        if time_sleep <= 0.001:
            time_sleep = 0.03
    display.show(Strek2)
    display.clear
    time.sleep(time_sleep)
    display.show(Strek3)
    if button_b.is_pressed():
        time_sleep += 0.05
        time_sleep = time_sleep
    elif button_a.is_pressed():
        time_sleep -= 0.5
        time_sleep = time_sleep
        if time_sleep <= 0.001:
            time_sleep = 0.03
    display.clear
    time.sleep(time_sleep)
    display.show(Strek4)
    if button_b.is_pressed():
        time_sleep += 0.05
        time_sleep = time_sleep
    elif button_a.is_pressed():
        time_sleep -= 0.05
        time_sleep = time_sleep
        if time_sleep <= 0.001:
            time_sleep = 0.03
    display.clear
    time.sleep(time_sleep)
    display.show(Strek5)
    if button_b.is_pressed():
        time_sleep += 0.05
        time_sleep = time_sleep
    elif button_a.is_pressed():
        time_sleep -= 0.05
        time_sleep = time_sleep
        if time_sleep <= 0.001:
            time_sleep = 0.03
    display.clear
    time.sleep(time_sleep)
    display.show(Strek6)
    if button_b.is_pressed():
        time_sleep += 0.05
        time_sleep = time_sleep
    elif button_a.is_pressed():
        time_sleep -= 0.05
        time_sleep = time_sleep
        if time_sleep <= 0.001:
            time_sleep = 0.03
    display.clear
    time.sleep(time_sleep)
    display.show(Strek7)
    if button_b.is_pressed():
        time_sleep += 0.05
        time_sleep = time_sleep
    elif button_a.is_pressed():
        time_sleep -= 0.05
        time_sleep = time_sleep
        if time_sleep <= 0.001:
            time_sleep = 0.03
    display.clear
    time.sleep(time_sleep)
    display.show(Strek8)
    if button_b.is_pressed():
        time_sleep += 0.05
        time_sleep = time_sleep
    elif button_a.is_pressed():
        time_sleep -= 0.05
        time_sleep = time_sleep
        if time_sleep <= 0.001:
            time_sleep = 0.03
    display.clear
    time.sleep(time_sleep)

    if time_sleep <= 0.001:
        time_sleep = 0.03