Python Initial---program one (login login)

#!/bin/bash/env python
While True:
User_name=raw_input (' What's your name? '). Strip ()
If Len (user_name) = = 0:
Print "Please input your user_name.if not,please register!"
Continue
Else
File=open ('/root/passwd ')
State=0 #no Login
Name_n=0 #no Account
User_pass=raw_input (' What's your password for user_name? '). Strip ()
For line in File.readlines ():
if user_name = = Line.split () [0]:
Name_n=name_n+1
if User_pass = = Line.split () [1]:
Print "Login successfully,welcome%s."% user_name
State=state+1
Break
Else
For I in Xrange (4):
Times=3-i
File2=open (R '/root/locked ', ' W ')
Print "Your inputing is Error,please re-enter."
User_pass=raw_input (' What's your password for user_name? '). Strip ()
if User_pass = = Line.split () [1]:
Print "Login successfully,welcome%s."% user_name
State=state+1
Break
Else
If times! = 0:
Print "Your inputing is error,please re-enter. And you can enter the only%s times "% times"
Continue
Else
Print "inputed too many times to re-enter.and your account is locked!"
File2.write (str (USER_NAME))
Break
Print Name_n
Print State
If Name_n = = 0:
Print "account does not exist!"
Continue
Else
Break

Python Initial---program one (login login)