password special character $ is not taking taking by argparser

I am trying to enter user name and password from command line. user name is 'rohit2010@gmail.com' and password is 'Lemon$319'.....When I am printing this values I can see the password is wrong. I am typing Lemon$319 but it is printing 'Lemon19'. $ and 3 are discarded.....Please help me what is going wrong.why it is not taking special character $?....Most of my passwords are having '$' sign. Please help.

Code:

__author__ = 'sujan'
#!/usr/bin/python

import argparse
import sys

def main(argv):
    parser = argparse.ArgumentParser(description='Description of your program')
    parser.add_argument('-u', '--usr', help='UserName', required=True)
    parser.add_argument('-p', '--pswd',help='PassWord', required=True)
    args = vars(parser.parse_args())
    uname = args['usr']
    # code here

    password =  args['pswd']
    # code here

    if uname is None or password is None:
        print "User name - Password not valid"
    else:
        print uname
        print password
        print "calling program"

if __name__ == "__main__":
   main(sys.argv[1:])