from validate_tester import loadclass
CardHolder = loadclass()

bob = CardHolder('1234-5678',  'Bob Smith', 40, '123 main st')
print('bob:', bob.name, bob.acct, bob.age, bob.addr)

sue = CardHolder('5678-12-34', 'Sue Jones', 35, '124 main st')
print('sue:', sue.name, sue.acct, sue.age, sue.addr)    # addr differs: client data
print('bob:', bob.name, bob.acct, bob.age, bob.addr)    # name,acct,age overwritten?