"""
Exercise 7.2 from "A primer on..."
Add an attribute to the Account class,
which counts the number of transactions
for the account. Adapt the dump-method
to print the number of transactions in 
addition to the other info. 
"""


class Account:
    def __init__(self, name, account_number, initial_amount):
        self.name = name
        self.no = account_number
        self.balance = initial_amount
        self.transactions = 1

    def deposit(self, amount):
        self.balance += amount
        self.transactions += 1

    def withdraw(self, amount):
        self.balance -= amount
        self.transactions += 1

    def dump(self):
        s = f"{self.name}, {self.no} balance: {self.balance}, transactions: {self.transactions}" 
        print(s)



a1 = Account('John Olsson', '19371554951', 20000)
a2 = Account('Liz Olsson', '19371564761', 20000)
a1.deposit(1000)
a1.withdraw(4000)
a2.withdraw(10500)
a1.withdraw(3500)
print('a1 balance:', a1.balance)
a1.dump()
a2.dump()

"""
Terminal> python Account2.py 
a1 balance: 13500
John Olsson, 19371554951 balance: 13500, transactions: 4
Liz Olsson, 19371564761 balance: 9500, transactions: 2
"""