display_banner() invalid escape sequence errors

[shad0vvfax]

This is what solved them for me:

banner = r"""
    | $$  | $$                              | $$  | $$
    | $$  | $$                      | $$    | $$  | $$                      | $$
    | $$  | $$  /$$$$$$   /$$$$$$$ /$$$$$$  | $$  | $$ /$$   /$$ /$$$$$$$  /$$$$$$    /$$$$$$   /$$$$$$
    | $$$$$$$$ /$$__  $$ /$$_____/|_  $$_/  | $$$$$$$$| $$  | $$| $$__  $$|_  $$_/   /$$__  $$ /$$__  $$
    | $$__  $$| $$  \ $$|  $$$$$$   | $$    | $$__  $$| $$  | $$| $$  \ $$  | $$    | $$$$$$$$| $$  \__/
    | $$  | $$| $$__| $$ \____  $$  | $$ /$$| $$  | $$| $$__| $$| $$  | $$  | $$ /$$| $$_____/| $$
    | $$  | $$|  $$$$$$/ /$$$$$$$/  |  $$$$/| $$  | $$|  $$$$$$/| $$  | $$  |  $$$$/|  $$$$$$$| $$
    |__/  |__/ \______/ |_______/    \___/  |__/  |__/ \______/ |__/  |__/   \___/   \_______/|__/
    """ + __version__