Top ten list from file

 class Player:
    def __init__(self, name, score):  # score < 100`000; name include only upper letters
        self.name = name
        self.score = score


def file_reader(file_name_in, list_in):
    file = open(file_name_in, 'r')
    for i in range(10):
        name_f = file.readline().strip().upper()
        score_f = int(file.readline().strip())
        player = Player(name_f, score_f)
        list_in.append(player)


def validation(name_in, score_in):
    if len(name_in) != 3:
        print("inappropriate name, please type another name")
        return False
    else:
        try:
            if score_in > 100000 or score_in < 1:
                print("too high or too low, it must be lower than 100`000 and higher than 0")
                return False
            else:
                return True
        except ValueError:
            print("this is not a number, try again >> ")
            return False


def new_list_generator(p_in, old_list):
    flag = False
    res_list = []
    for p_old in old_list:
        if p_old.score > p_in.score or flag is True:
            res_list.append(p_old)
        else:
            res_list.append(p_in)
            flag = True
            res_list.append(p_old)
    if len(res_list) > 10:
        res_list.pop()
    return res_list


def print_list(list_in):
    for player in list_in:
        print(player.name, "        ", player.score)


# Reading data from file to list
top_ten_list = []
file_name = "data.txt"
file_reader(file_name, top_ten_list)

# Creating a new player and validating input from used
validation_succeed = False
name_new = ""
score_new = 0
while not validation_succeed:
    name_new = input("please enter the name in 3 letters >> ").upper()
    score_new = int(input("please type the score, must be lower than 100`000 >> "))
    if validation(name_new, score_new):
        validation_succeed = True

# Creating a new top ten list adding a new player
p = Player(name_new, score_new)
new_top_ten_list = new_list_generator(p, top_ten_list)

# Printing new top ten list
print_list(new_top_ten_list)

# File data:
# FYI
# 10000
# ABC
# 9092
# KEL
# 8500
# PAI
# 8203
# BBB
# 7980
# ACE
# 7246
# GKL
# 7001
# JSI
# 6490
# EIF
# 6003
# DIS
# 2000