July project night/OO lesson/banking3.py

class Bank: def __init__(self): self.usernamesPasswordsDictionary = {} def addUser(self, username, password): user = User(username, password) self.usernamesPasswordsDictionary[user.username] = user.password print "Bank added user: " + user.username return user def addAccount(self, user): account = Account(user) print "Bank added account " + account.user.username + " with %d bucks" % (account.balance) return account def logIn(self, username, password): if self.usernamesPasswordsDictionary[username] == password: return True print "Bank could not log you in." return False

class User: def __init__(self, theUsername, thePassword): self.username = theUsername self.password = thePassword

class Account: def __init__(self, user): self.balance = 0 self.user = user def addMoney(self, amount): self.balance = self.balance + amount print "Account just added %d bucks; new balance is: %d" % (amount, self.balance) def withdrawMoney(self, amount): self.balance = self.balance - amount print "Account just withdrew %d bucks; new balance is: %d" % (amount, self.balance)