CS61a_Berkeley/classes.py at master · p2327/CS61a_Berkeley · GitHub

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class Account:
    interest = 0.04
    def __init__(self, account_holder):
        self.balance = 0
        self.holder = account_holder
    def deposit(self, amount):
        self.balance = self.balance + amount
        return self.balance

kirk_acc = Account('Kirk')


spock_acc = Account('Spock')
spock_acc.balance = 200

accounts = (kirk_acc, spock_acc)
[acc.balance for acc in accounts]

kirk_acc.interest = 0.5

Account.interest = 0.3

print(spock_acc.interest)

Account.deposit(spock_acc, 150)

print(kirk_acc.interest)


# extending from class

class Account:
    interest = 0.04
    def __init__(self, account_holder):
        self.balance = 0
        self.holder = account_holder
    def deposit(self, amount):
        self.balance = self.balance + amount
        return self.balance
    def withdraw(self, amount):
        if amount > self.balance:
            return 'Insufficient found'
        self.balance -= amount
        return self.balance


class CheckingAccount(Account):
    interest = 0.01
    withdraw_fee = 1

    def withdraw(self, amount):
        return Account.withdraw(self, amount + self.withdraw_fee)


spock_acc = Account('Spock')
spock_acc.balance = 200

spock_acc.interest = 0.5

kirk_acc = CheckingAccount('Kirk')

Account.interest = 0.3

print(spock_acc.interest)
print(kirk_acc.interest)

kirk_acc.deposit(200)

kirk_acc.withdraw(5)

kirk_acc.withdraw_fee = 0.5

kirk_acc.withdraw(10)