IndentationError: expected an indented block, python (if/else)

Question

I can\'t find the error

def free_car(lane_a,lane_b,lane_c):
    cars_a = len(lane_a)
    cars_b = len(lane_b)
    cars_c = len(lane_c)

             


        

Answer 1

Python requires a statement after each clause. If you want it to do nothing, simply write the word pass

if cars_c >= 7:
    #free_1_c
    if cars_a >= cars_b:
        pass
        #free_1_a
        #free_1_b
    else:
        pass
        #free_1_b
        #free_1_a
elif cars_a >= cars_b:
    #free_1_a
    if cars_b > cars_c:
        pass
        #free_1_b
        #free_1_c
    else:
        pass
        #free_1_c
        #free_1_b
elif cars_b > cars_a and cars_b > cars_c:
    #free_1_b
    if cars_a > cars_c:
        pass
        #free_1_a
        #free_1_c
    else:
        pass
        #free_1_c
        #free_1_a
else:
    pass
    #we