import msvcrt, sys, os

print('password: ', end='', flush=True)

li = []

while 1:

ch = msvcrt.getch()

#回车

if ch == b'\r':

msvcrt.putch(b'\n')

print('输入的密码是：%s' % b''.join(li).decode())

break

#退格

elif ch == b'\x08':

if li:

li.pop()

msvcrt.putch(b'\b')

msvcrt.putch(b' ')

msvcrt.putch(b'\b')

#Esc

elif ch == b'\x1b':

break

else:

li.append(ch)

msvcrt.putch(b'*')

os.system('pause')

示例

一、raw_input()或input()：

for python 2.x

[root@master test]# /usr/local/python2.7/bin/python test.py

Please input your password:123

your password is 123

[root@master test]# cat test.py

#!/usr/bin/python

# -*- coding=utf-8 -*-

#for python 2.x

#input = raw_input("Please input your password:")

#print "your password is %s" %input

for python 3.x

[root@master test]# /usr/local/python3.4/bin/python3 test.py

Please input your password:123

your password is 123

[root@master test]# cat test.py

#!/usr/bin/python

# -*- coding=utf-8 -*-

#for python 3.x

input = input("Please input your password:")

print ("your password is %s" %input)

Note：这种方法最简单，但是不安全，很容易暴露密码。

二、getpass.getpass()：

for python 2.x

[root@master test]# /usr/local/python2.7/bin/python test.py

Please input your password:

your password is 123

[root@master test]# cat test.py

#!/usr/bin/python

# -*- coding=utf-8 -*-

import getpass

#for python 2.x

input = getpass.getpass("Please input your password:")

print "your password is %s" %input

for python 3.x

[root@master test]# /usr/local/python3.4/bin/python3 test.py

Please input your password:

your password is 123

[root@master test]# cat test.py

#!/usr/bin/python

# -*- coding=utf-8 -*-

import getpass

#for python 3.x

input = getpass.getpass("Please input your password:")

print ("your password is %s" %input)

Note：这种方法很安全，但是看不到输入的位数，让人看着有点不太习惯，而且没有退格效果。

三、termios：

for python 2.x

[root@master test]# /usr/local/python2.7/bin/python test.py

Enter your password:***

your password is 123

[root@master test]# cat test.py

#!/usr/bin/python

# -*- coding=utf-8 -*-

import sys, tty, termios

#for python 2.x

def getch():

fd = sys.stdin.fileno()

old_settings = termios.tcgetattr(fd)

try:

tty.setraw(sys.stdin.fileno())

ch = sys.stdin.read(1)

finally:

termios.tcsetattr(fd, termios.TCSADRAIN, old_settings)

return ch

def getpass(maskchar = "*"):

password = ""

while True:

ch = getch()

if ch == "\r" or ch == "\n":

print

return password

elif ch == "\b" or ord(ch) == 127:

if len(password) > 0:

sys.stdout.write("\b \b")

password = password[:-1]

else:

if maskchar != None:

sys.stdout.write(maskchar)

password += ch

if __name__ == "__main__":

print "Enter your password:",

password = getpass("*")

print "your password is %s" %password

for python 3.x

[root@master test]# /usr/local/python3.4/bin/python3 test.py

Enter your password:

***your password is 123

[root@master test]# cat test.py

#!/usr/bin/python

# -*- coding=utf-8 -*-

import sys, tty, termios

#for python 3.x

def getch():

fd = sys.stdin.fileno()

old_settings = termios.tcgetattr(fd)

try:

tty.setraw(sys.stdin.fileno())

ch = sys.stdin.read(1)

finally:

termios.tcsetattr(fd, termios.TCSADRAIN, old_settings)

return ch

def getpass(maskchar = "*"):

password = ""

while True:

ch = getch()

if ch == "\r" or ch == "\n":

print

return password

elif ch == "\b" or ord(ch) == 127:

if len(password) > 0:

sys.stdout.write("\b \b")

password = password[:-1]

else:

if maskchar != None:

sys.stdout.write(maskchar)

password += ch

if __name__ == "__main__":

print ("Enter your password:",)

password = getpass("*")

print ("your password is %s" %password)

Note：这种方法可以实现输入显示星号，而且还有退格功能，该方法仅在Linux上使用。

四、msvcrt.getch()

F:\Python\Alex\s12\zhulh>python test.py

Please input your password:

***

your password is:123

#!/usr/bin/python

# -*- coding=utf-8 -*-

import msvcrt,sys

def pwd_input():

chars = []

while True:

try:

newChar = msvcrt.getch().decode(encoding="utf-8")

except:

return input("你很可能不是在cmd命令行下运行，密码输入将不能隐藏:")

if newChar in '\r\n': # 如果是换行，则输入结束

break

elif newChar == '\b': # 如果是退格，则删除密码末尾一位并且删除一个星号

if chars:

del chars[-1]

msvcrt.putch('\b'.encode(encoding='utf-8')) # 光标回退一格

msvcrt.putch( ' '.encode(encoding='utf-8')) # 输出一个空格覆盖原来的星号

msvcrt.putch('\b'.encode(encoding='utf-8')) # 光标回退一格准备接受新的输入

else:

chars.append(newChar)

msvcrt.putch('*'.encode(encoding='utf-8')) # 显示为星号

return (''.join(chars) )

print("Please input your password:")

pwd = pwd_input()

print("\nyour password is:{0}".format(pwd))

sys.exit()

Note：这种方法可以实现输入显示星号，而且还有退格功能，该方法仅在Windows上使用。

在这里提供shell实现的输入密码显示星号的方法：

[root@master test]# sh ./passwd.sh

Please input your passwd: ***

Your password is: 123

[root@master test]# cat passwd.sh

#!/bin/sh

getchar() {

stty cbreak -echo

dd if=/dev/tty bs=1 count=1 2> /dev/null

stty -cbreak echo

}

printf "Please input your passwd: "

while : ; do

ret=`getchar`

if [ x$ret = x ]; then

echo

break

fi

str="$str$ret"

printf "*"

done

echo "Your password is: $str"

这里还有一个获取跨平台按键的例子：

class _Getch:

"""Gets a single character from standard input. Does not echo to the screen."""

def __init__(self):

try:

self.impl = _GetchWindows()

except ImportError:

try:

self.impl = _GetchMacCarbon()

except AttributeError:

self.impl = _GetchUnix()

def __call__(self): return self.impl()

class _GetchUnix:

def __init__(self):

import tty, sys, termios # import termios now or else you'll get the Unix version on the Mac

def __call__(self):

import sys, tty, termios

fd = sys.stdin.fileno()

old_settings = termios.tcgetattr(fd)

try:

tty.setraw(sys.stdin.fileno())

ch = sys.stdin.read(1)

finally:

termios.tcsetattr(fd, termios.TCSADRAIN, old_settings)

return ch

class _GetchWindows:

def __init__(self):

import msvcrt

def __call__(self):

import msvcrt

return msvcrt.getch()

class _GetchMacCarbon:

"""

A function which returns the current ASCII key that is down;

if no ASCII key is down, the null string is returned. The

page http://www.mactech.com/macintosh-c/chap02-1.html was

very helpful in figuring out how to do this.

"""

def __init__(self):

import Carbon

Carbon.Evt #see if it has this (in Unix, it doesn't)

def __call__(self):

import Carbon

if Carbon.Evt.EventAvail(0x0008)[0]==0: # 0x0008 is the keyDownMask

return ''

else:

#

# The event contains the following info:

# (what,msg,when,where,mod)=Carbon.Evt.GetNextEvent(0x0008)[1]

#

# The message (msg) contains the ASCII char which is

# extracted with the 0x000000FF charCodeMask; this

# number is converted to an ASCII character with chr() and

# returned

#

(what,msg,when,where,mod)=Carbon.Evt.GetNextEvent(0x0008)[1]

return chr(msg & 0x000000FF)

if __name__ == '__main__': # a little test

print 'Press a key'

inkey = _Getch()

import sys

for i in xrange(sys.maxint):

k=inkey()

if k<>'':break

print 'you pressed ',k

参考：https://www.cnblogs.com/Richardzhu/p/5162289.html

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