"""
double__in_place.py

 write a function that modifies a list in place 

"""

def double_in_place(numbers):
    """ double each element of the list numbers """
    for i in range(len(numbers)):
        numbers[i] = 2 * numbers[i]

def main():
    the_list = [3, 7, 11]
    print("the orgiginal list is ", the_list)
    double_in_place(the_list)
    print("the orgininal list is now ", the_list)

main()