python3.5.2库getpass

getpass的功能是：允许隐式的输入字符串

import getpass

_username='vigossr'

_password='haha'

username=input('username: ')

password=getpass.getpass('password: ')

if _username==username and _password==password:

    print('Welcom {username}!'.format(username=username))

else:

    print('Invalid username/password')

Note: Pycharm无法运行，可以在linux服务器上执行