getpass模块：不显示输入密码
用法：
1 #!/usr/bin/python 2 #2017-05-13 3 #_*_coding:utf-8_*_ 4 5 import getpass 6 7 username = raw_input ("username:") 8 password = getpass.getpass ("password:") 9 10 print(username,password)
原文：http://www.cnblogs.com/0628s/p/6856812.html