python3编写登录接口

#/usr/bin/env python
#yehui
'''
作业一：博客

作业二：编写登陆接口

    输入用户名密码
    认证成功后显示欢迎信息
    输错三次后锁定
'''
import getpass, os, pickle

class PathJudge:
    def __init__(self):
        self.path1 = "userinfo"
        self.path2 = "user_dict_info"

    def judge_path(self):                                  ##检查文件夹是否存在
        if os.path.exists('userinfo'):
            print("file %s is exists and then pass" % self.path1)
        else:
            os.mkdir(self.path1)                          ##创建一级目录,如果要创建多级目录需要用到" os.makedirs('多级目录的详细路径') "
        if os.path.exists('user_dict_info'):
            print("file %s is exists and then pass" % self.path2)
        else:
            os.mkdir(self.path2)

class PickleDic:
    def __init__(self):
        self.pickle_file = "user_dict_info/dict_info.pickle"

    def pickle_dict(self, dic):                            ##备份用户列表
        self.dumped = dic
        with open(self.pickle_file, 'wb') as self.data:    ##不管备份或者读取的时候都必须要先读取该备份列表
            pickle.dump(self.dumped, self.data)

    def load_dict(self):                                   ##读取用户列表
        with open(self.pickle_file, 'rb') as self.load:
            self.new_dict = pickle.load(self.load)
            self.load.flush()
        return self.new_dict

class LongIn:
    def __init__(self):
        self.counts = 0
        self.dict = PickleDic().load_dict()

    def login(self):
        while self.counts < 10:
            self.counts += 1
            self.name = input("username: ")
            self.pwd = getpass.getpass("password: ")
            if self.name not in self.dict :print("用户不存在!");break
            self.verify = list(self.dict[self.name].values())[0]
            if self.verify >= 3:exit("你的帐号已经被锁定")
            if self.pwd in self.dict[self.name].keys():
                print("哥们,欢迎登上了通往未来的列车!")
                break
            else:
                print("密码错误!")
                self.verify += 1
                print("你错误的次数是%s, 如错误达到3次将被锁定" % self.verify)
                for self.k in self.dict[self.name].keys():
                    (self.dict[self.name])[self.k] = self.verify
                self.back = PickleDic().pickle_dict(self.dict)

class ClearLock:                             ##这段代码是为了重置每天的锁定,正常情况下是跟该模块分开并且每天24点定时整执行一次
    def __init__(self):
        self.dict_userinfo = {'fdd': {'123': 0}, 'fgg': {'234': 0}, 'djj': {'456': 0}}
    def clear_lock(self):
        self.clock = PickleDic()
        self.clock.pickle_dict(self.dict_userinfo)
        print("锁定器清理完成! %s" % self.clock.load_dict())


path=PathJudge()
path.judge_path()

#c = ClearLock()          ##如果为了是第一次执行,或者不存在用列,把这两个注释去掉.
#c.clear_lock()

l = LongIn()
l.login()