try3.py

def score_for_shape(shape):
  if shape == 'X':
    return 1
  if shape == 'Y':
    return 2
  if shape == 'Z':
    return 3

def score_for_outcome(outcome):
  if outcome == 'win':
    return 6
  if outcome == 'draw':
    return 3
  if outcome == 'loss':
    return 0

def score_for_round(opponent_shape, player_shape):
  if opponent_shape == 'A' and player_shape == 'C':
    outcome = 'loss'
  elif opponent_shape == 'B' and player_shape == 'A':
    outcome = 'loss'
  elif opponent_shape == 'C' and player_shape == 'B':
    outcome = 'loss'
  elif opponent_shape == player_shape:
    outcome = 'draw'
  else:
    outcome = 'win'
  return score_for_shape(player_shape) + score_for_outcome(outcome)

def calculate_total_score(strategy_guide):
  total_score = 0
  for round in strategy_guide:
    x = score_for_round(round[0], round[1])
    total_score += x
  return total_score

strategy_guide = [('A', 'Y'), ('B', 'X'), ('C', 'Z')]

def change_letters(strategy_guide):
  new_strategy_guide = []
  for round in strategy_guide:
    opponent_shape = round[0]
    player_shape = round[1]
    if opponent_shape == 'A':
      player_shape = 'X'
    elif opponent_shape == 'B':
      player_shape = 'Y'
    elif opponent_shape == 'C':
      player_shape = 'Z'
    new_strategy_guide.append((opponent_shape, player_shape))
  return new_strategy_guide
  
fixed_strategy_guide = change_letters(strategy_guide)
print(calculate_total_score(fixed_strategy_guide))