2015/9/3 Python密码输入屏蔽字符

import  msvcrt, sys

def pwd_input(a):
print str(a),
chars = []
while True:
newChar = msvcrt.getch()
if newChar in '\r\n':
print ''
break
elif newChar in '\b':
if chars:
del chars[-1]
sys.stdout.write('\b\b')
else:
chars.append(newChar)
sys.stdout.write('*')
return str(chars)

pwd = pwd_input('password:')