使用python编写一个登录接口

#!/usr/bin/env python
tries = 0
lockfile = open('account_lock.txt','r+',encoding='UTF-8')
tolockfile = open('account_lock.txt','a',encoding='UTF-8')
userfile = open('account.txt','r',encoding='utf-8')

def islock(account):
    for line in lockfile:
        line = line.strip('\n')
        if line == account:
            print('此账号已锁定')
            exit()

def inaccount(account):
    for line in userfile:
        col1_user,col2_pass = line.strip().split()
        if col1_user == account:
            passtries = 0
            while passtries < 3:
                pass1 = input('请输入密码：')
                if col2_pass == pass1:
                   print('欢迎使用')
                   exit()
                else:
                   passtries +=1
            else:
                tolockfile.write('%s\n' %(account))
                print('账号已锁定！')
                exit()

        else:
            print('此账号不存在')
            break

while tries<3:
    account = input('请输入账号:')
    islock(account)
    inaccount(account)
    tries +=1
else:
    print('此用户真的不存在 88')
    exit()

lockfile.close()
userfile.close()
tolockfile.close()



# with open('account_lock.txt','a',encoding='UTF-8') as data:  
#     data.write("aaa")  
#此方法可以方式忘记文件close
#tolockfile = open('account_lock.txt','a',encoding='UTF-8')
#open文件后进行追加至最后一行