binary search to find a tennis ball

balls=[40,43,56,67,72,76,210,218,223,239]
tennisball=67
def binary_search(sorted_list,value):


    movect = 1
    left =0
    right = len(sorted_list)-1
    while left <= right :
        mid = int((left + right)/2)


        if sorted_list[mid]<value:
            left = mid+1
            movect += 1
        elif sorted_list[mid]>value:
            right = mid-1
            movect +=  1
        else:
            return mid, movect
    return False

pos,mov2=binary_search(balls,tennisball)
print('The tennis ball is the ', str(pos+1),' ball in the shelf.')
print('binary search took ' ,str(mov2),'times to move')