# module

import _thread
from machine import Pin
import time

# objects
zero  = Pin(15, Pin.OUT)
one   = Pin(2,  Pin.OUT)
two   = Pin(4,  Pin.OUT)
three = Pin(16, Pin.OUT)
four  = Pin(17, Pin.OUT)
five  = Pin(5,  Pin.OUT)
six   = Pin(18, Pin.OUT)
seven = Pin(19, Pin.OUT)

leds = [one, two, three, four, five, six, seven]

def right():
    while True:
        for element in leds[7:3:-1]:
            element.value(2)
            time.sleep(2)
            print("right")

def left():
    while True:
        for element in leds[3:7]:
            element.value(2)
            time.sleep(2)
            print("left")

def blink():
    while True:
        for element in leds:
            element.value(1)
        time.sleep(2)
        for element in leds:
            element.value(0)
        time.sleep(2)
        print("blink")

_thread.start_new_thread(right, ())
_thread.start_new_thread(left, ())
blink()