# File:    tuThPins.py
# Author:  Dr. Gibson
# Date:    11/15/2016
# Section: N/A
# E-mail:  k.gibson@umbc.edu 
# Description:
#   This file contains python code that creates and stores
#   randomly-generated pins for users.

import random
MIN_PIN = 0
MAX_PIN = 9999
QUIT = "quit"

def main():
    # explicitly seed it with the system time
    random.seed()

    # this does the same thing as  logins = {}
    logins = dict()

    name = input("Please enter your username ('quit' to quit): ")

    # this is terrible, never do this
    while name != QUIT:

        # this means the name already exists
        #if logins.get(name) != None:
        if name in logins:
            print("The pin for", name, "is", logins[name])
        else:
            # generate a random pin for them
            newPin = random.randrange(MIN_PIN, MAX_PIN + 1, 1)
            logins[name] = newPin
            print("The pin for the new user", name, "is", logins[name])
            
        # ask for another username
        name = input("Please enter your username ('quit' to quit): ")

    print(logins)

main()