# Function to_string() - place your own comments here...  : )
def to_string(my_list, sep=', '):

    # This line will eventually be removed - used for development purposes only.
    #print("In function to_string()")
    string = ""
    print("List is: ", end ="")

    # Place your code here
    for element in range(len(my_list)):
        string += (my_list[element])

    return string