rts.py

import random
CHOICES = {'rock': 'scissors', 'paper': 'rock', 'scissors': 'paper'}
SCORES = {"user": 0, "comp": 0, 'draw': 0}
while not any(a == 3 for a in SCORES.values()):
    user = input("Enter rock, paper or scissors: ")
    SCORES[{True: "user", False: "comp"}.get(
        CHOICES.get(user) == random.choice(list(CHOICES.keys())), 'draw')] += 1
    print(f'U:{SCORES["user"]}. C: {SCORES["comp"]}, D: {SCORES["draw"]}')