newuser = "hamster201"
 
fin = open("MyUserFile.txt", "r")
text = fin.read()
fin.close()
 
if newuser in text:
    print "this username already used"

#User Access for Password.py
import cPickle as p

fload = open('systemaccess.txt', 'a+')
temp = fload.read()

print 'Welcome to the System Account Setup.'
Username = raw_input('Please enter the username you desire: ')
Password = raw_input('Enter your desired password: ')

if Username in temp:
    print 'That username already taken.'
else:
    temp[Username] = Password

import cPickle as p

userpassfile = 'systemaccess.txt'
userpass = {'Andrew' : 'potato', 'Heather' : 'tomato', 'Peggy' : '0598', 'Winston' : 'potato0598'}
f = file(userpassfile, 'a')
p.dump(userpass, f)
f.close()

temp = p.load('systemaccess.txt')

temp = p.load(open('systemaccess.txt'))