python应用文件读取与登录注册功能

#!/usr/bin/python3
# -*- coding: utf-8 -*-
# Author: zhw
#读取文件中的内容
def open_file(filename ,file_type , *args):
  #读取文件中的数据
  if file_type == 'r':
    flie_list = []
    with open(filename,file_type) as sub_all:
      for file_line in sub_all:
        flie_list.append(file_line.strip())
      #print(flie_list)
      return flie_list
  #读取文件中的用户号
  elif file_type == 'ru':
    flie_list = []
    with open(filename,'r') as sub_all:
      for file_line in sub_all:
        file_l = file_line.split('|')
        user_no = file_l[0]
        flie_list.append(user_no.strip())
      #print(flie_list)
      return flie_list
  #写入文件
  elif file_type == 'a+':
    data = args[0]
    with open(filename, file_type) as sub_all:
      sub_all.write(data +"\n")
  else:
    print('您输入的格式没有，请检查')
class User(object):
  def __init__(self, user_no, user_pw):
    self.user_no = user_no
    self.user_pw = user_pw
    self.file = 'login.log'
  @property
  #检查账号是否已经存在
  def check_user(self):
    flie_list = open_file(self.file, 'ru')
    if self.user_no in flie_list:
      return '1'
    else:
      return '0'
  #注册账号
  def regist(self):
    user_info = '%s|%s' % (self.user_no, self.user_pw)
    open_file(self.file, 'a+',user_info)
    #return'注册成功'
  #账号登录
  def login(self):
    flie_list = open_file(self.file, 'r')
    user_info = '%s|%s' % (self.user_no, self.user_pw)
    if user_info in flie_list:
      return '1'
    else:
      return '0'

def return_more(args):
  pass
#循环验证登录，循环注册账号
while True:
  print('请选择\n '
     '1. 注册\n'
     '2. 登录\n'
     '3. 退出')
  choose = input('请选择').strip()
  if choose == '1':
    for i in range(3):
      user_no = input('请输入注册账号：').strip()
      user_pw = ''
      user = User(user_no,user_pw)
      #检查用户号是否存在
      return_more = user.check_user
      if return_more == '0':
        user_pw = input('请输入注册密码：').strip()
        user = User(user_no, user_pw)
        return_more = user.regist()
        print(return_more)
        break
      else:
        print('您输入的账号已经存在，请选择其他账号')
    #print('您输入的错误次数太多，已退出！')
  elif choose == '2':
     for i in range(3):
       user_no = input('请输入登录账号：').strip()
       user_pw = input('请输入登录密码').strip()
       user = User(user_no, user_pw)
       #用户登录
       return_mk = user.login()
       if return_mk =='0':
         print("登录失败，请重新输入")
       else:
         print('登录成功')
         break
  elif choose == '3':
    break
  else:
    print('输入序号有无，请重新输入')