def open_text(fname):
    """
    open and read a text file line by line.
    convert to and return the list
    parameters: 
    fname: string, full path to the file
    """
    with open(fname, 'rb') as f:
        content = f.readlines()
    # you may also want to remove whitespace characters like `\n` at the end of each line
    content = [x.strip() for x in content] 
    return content