from machine import Pin      
relay = Pin(15, Pin.OUT)     
push_button = Pin(13, Pin.IN)  

while True:   #infinite loop
    logic_state=push_button.value() #storing the value of the push button state in the variable logic_state
    if logic_state==True:  #if state of button is logic 1
        relay.value(1)    #LED is ON
        print("relay on")
    else:
        relay.value(0)    #LED is OFF
        print("relay off")