cuefa.py

import random

ROCK = 1
SCISSORS = 2
PAPER = 3

DRAW = 'Draw.'
HUMAN = 'Human'
BOT = 'BIP-BOP'

wins = {
    ROCK: SCISSORS,
    SCISSORS: PAPER,
    PAPER: ROCK
}
reverse = {
    SCISSORS: ROCK,
    PAPER: SCISSORS,
    ROCK: PAPER
}

def most_common(lst):
    if not lst:
        return None
    return max(set(lst), key=lst.count)

history = []
def get_turn():
    N = 5
    humans_like = most_common([i for i, _, _ in history][-N:])
    if humans_like is None:
        return random.choice((ROCK, SCISSORS, PAPER))
    else:
        return reverse[humans_like]

def main():
    while True:
        res = DRAW
        while res == DRAW:
            human = input('> ')
            if not human or not human.isalnum():
                print('  Oops')
                continue
            human = int(human)
            if human not in wins:
                print('  Oops')
                continue
            bot = get_turn()
            res = None
            if human == bot:
                res = DRAW
            elif wins[human] == bot:
                res = HUMAN
            else:
                res = BOT
            print(f'  {bot}')
            history.append((human, bot, res))
        hum_wins = sum(1 for _, _, i in history if i == HUMAN)
        bot_wins = sum(1 for _, _, i in history if i == BOT)
        print(f'[H:{hum_wins} | B:{bot_wins}] {res}')

if __name__ == '__main__':
    main()