def file_2_list(filename):

    """Function:  file_2_list

    Description:  Reads in each line of a file and inserts into a list.
        NOTE: Will remove any newlines "\n" at the end of each line.

    Arguments:
        (input) filename -> File name to be read.
        (output) lines -> The file lines in a list.

    """

    with open(filename, "r") as f_hdlr:
        lines = [item.rstrip("\n") for item in f_hdlr.readlines()]

    return lines