Abstract Method

A method with no logic
It’s a rule only – every subclass must write its own version

Bank Analogy:

Think of the withdrawal process.

• Savings Account → withdraw only if balance is available

• Current Account → allow overdraft

• Digital Wallet → maybe allow cashback or limits

So, the main account says:

Copyfrom abc import ABC, abstractmethod

class BankAccount(ABC):
    @abstractmethod
    def withdraw(self, amount):  # abstract method
        pass

It’s like saying:
"Every type of account must write their own withdraw logic."

Only works in abstract class

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So, How Do You Know It's Abstract?

Copy@abstractmethod
def withdraw(self, amount):
    pass

• That @abstractmethod decorator is the signal

• It means → no logic, just a rule