Core Concept Mastery • Python Visual Series Module
Now that you understand classes, objects, __init__, instance variables, methods, and self, let's see how they all work together in a complete, realistic example.
class BankAccount:
def __init__(self, owner, balance=0):
self.owner = owner
self.balance = balance
def deposit(self, amount):
self.balance += amount
print(f"Deposited {amount}")
def get_balance(self):
return self.balance
acc = BankAccount("Alice", 100)
acc.deposit(50)
print(acc.get_balance())
This class combines everything: __init__ for setup, instance variables (owner, balance), methods for behavior (deposit, get_balance), and self to tie it all together. Let's trace it.