python code 1_username registration & login

This tiny program consists of 2 parts - registration and login. In the part of registration, the key point is to create a folder to store user's information.  And the part that cost my most time is how to name a file automatically with variety's name. Here is the registration code:

 # Author: Eva Han

 for i in range(1000):
     r_username = input('please input your username for registration:')
     r_passwd = input('please input your password for registration:')
     r_passwd2 = input('please input your password again:')

     if r_passwd == r_passwd2:
         file_name = 'F:/python/计算机学习/practice/homework1/registration/'+ r_username +'.txt'
         regis_info = open(file_name,'w+')
         regis_info2 = '''{_r_username}
 {_r_passwd}'''.format(_r_username = r_username, _r_passwd = r_passwd )
         regis_info.write(regis_info2 )
         regis_info.flush()
         regis_info.close()
         break
     else:
         print('The passwords are diffrent, please input again')

Besides, there is a small point needed to be paid attention to - the content of regis_info2. Don't add any blank space!!! It's pretty important! and we need to check it again and again. Cuz in the next part, because of the blank space that I didn't notice, I was reminded that I input a wrong password many times even if I input the right one. = ^ =

In the login program, the best parts are the methods of globaling a variety, reading the content in a specific line and using count number to operate under a specific condition. The login program is shown below:

 # Author: Eva Han

 username = input('Please input your username for login:')
 user_file_name = 'F:/python/计算机学习/practice/homework1/registration/'+ username +'.txt'
 user_info = open(user_file_name, 'r')

 # 读取第二行的信息，并存为_password变量
 # lines = user_info.readlines()
 # line2 = user_info.readline()

 def func():
     count = 0
     global l_passwd
     for lines in user_info:
         count = count + 1  # 此处的起始值即为1
         if count == 2:
             l_passwd = lines
             break
 func()

 # 让用户输入密码进行判断
 count2 = 0
 for j in range(3):
     password = input('please input your password for login:')
     if l_passwd == password:
         print('Welcome to my world!')
         break
     else:
         print('wrong password!')
         count2 += 1

 if count2 == 3:
      print('Your account is locked...')
      l_file_name = 'F:/python/计算机学习/practice/homework1/login/'+username+'.txt'
      login_info = open(l_file_name,'w+')
      login_info.write(username)
      login_info.close()

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