Calculate FIFA Ultimate Team Squad Ratings (from https://fifauteam.com/fifa-21-squad-rating-guide/)

fut_squad_ratings.py

def calculate_ratings(players):
    # Get the sum for all players ratings
    player_ratings = map(lambda x: x.ratings, players)
    sum_player_ratings = sum(player_ratings)
    
    # Also get the average
    average_player_ratings = sum_player_ratings / 11

    # Calculate the correction factor (for each player, it's either positive delta or 0) and get the total.
    correction_factor = sum(map(lambda x: max(0, x - average_player_ratings), player_ratings))

    # Take the total sum of player ratings + correction factor, round it, divide it by 11, and round it again.
    total = round(sum_player_ratings + correction_factor) # has to be rounded
    squad_ratings = round(total / 11)
    return squad_ratings