#!/usr/bin/env python
# -*- coding: utf-8 -*-

import pickle


d = {}


def main():


    useri = raw_input('enter choice(add[1], del[2], show[3]): ')

    if useri == 1:
        name = raw_input('enter name: ')
        number = raw_input('enter number: ')


        if name in d:
            print "Name already in use."
        else:
            d[name] = number
        #writes
        output = open('info.pkl', 'wb')
        pickle.dump(d, output)
        output.close()


    elif useri == 2:
        delname = raw_input('enter name to delete: ')
        if delname in d:
            del d[delname]
        else:
            print "Not in dictrionary"

    elif useri == 3:
        #reads
        pkl_file = open('info.pkl', 'rb')
        d2 = pickle.load(pkl_file)
        pkl_file.close()
        print d2

    else:
        print "Choose an option"


    return 0




if __name__ == '__main__':
    main()