Crystal Ball

crystal_ball.py

from cmd import Cmd
import random
import string
import uuid


# noinspection PyMethodMayBeStatic,PyUnusedLocal
class CrystalBall(Cmd):
    intro = 'Ask the crystal ball for some truly random things. \n\n' \
            'Type "help" to get some help.'
    prompt = '(Crystal Ball 🔮) '
    ruler = "-"

    def default(self, arg):
        if arg == "EOF":
            # exit on Ctrl-D
            return self.do_quit(arg)

        return super().default(arg)

    def do_uuid(self, arg):
        """Prints a random uuid v4"""
        print(uuid.uuid4())

    def do_emoji(self, arg):
        """Prints a random sequence of emojis.

        k -- length of sequence (optional)
        """
        self._random_string(arg, "🙈🙉🙊💥💫🐤💦💨🐶🐱🐩🐚🐆🐻🐍🐸🐧🐓🐼🐾🐵🌻🐌")

    def do_alphanum(self, arg):
        """Prints a random alphanumeric sequence.

        k -- length of sequence (optional)
        """
        self._random_string(arg, string.ascii_letters + string.digits)

    def do_numeric(self, arg):
        """Prints a random numeric sequence.

        k -- length of sequence (optional)
        """
        self._random_string(arg, string.digits)

    def _random_string(self, arg, alphabet):
        args = arg.split()
        k = int(args[0]) if args else 16
        print(''.join(random.choices(alphabet, k=k)))

    def do_exit(self, arg):
        """Quits the shell"""
        return True

    def do_quit(self, arg):
        """Quits the shell"""
        return True

    def do_q(self, arg):
        """Quits the shell"""
        return True


if __name__ == '__main__':
    CrystalBall().cmdloop()