Simple Python get password with argparse

#!/usr/bin/env python

import argparse, getpass

class Password(argparse.Action):
    def __call__(self, parser, namespace, values, option_string):
        if values is None:
            values = getpass.getpass()

        setattr(namespace, self.dest, values)

parser = argparse.ArgumentParser('Test password parser')
parser.add_argument('-p', action=Password, nargs='?', dest='password', help='Enter your password')
args = parser.parse_args()

print args.password

hai please help me how to display information of sensors in the form of text in place of graphical represntation

Thank you for posting this, saved me some time.

Doesn't work and formatting is also wrong