[Solved] Identify the problem in this code:class Base: def info(self): print('Base info') class Derived(Base): def info(self): Base.info() print('Derived info') d = Derived() d.info() | Python

Python - Inheritance and Code Reuse

Identify the problem in this code:

class Base:
    def info(self):
        print('Base info')

class Derived(Base):
    def info(self):
        Base.info()
        print('Derived info')

d = Derived()
d.info()

ANo problem, code runs fine

BBase.info() should be called with self: self.Base.info()

CBase class info method is missing self parameter

DBase.info() should be called with instance: Base.info(d)

Step-by-Step Solution

Solution:

Step 1: Check how Base.info() is called
Calling Base.info() without an instance causes error because method needs self.
Step 2: Correct call requires passing instance
It should be Base.info(self) or Base.info(d) to pass the instance.
Final Answer:
Base.info() should be called with instance: Base.info(d) -> Option D
Quick Check:
Parent method call needs instance = A [OK]

Quick Trick: Call parent method with instance or use super() [OK]

Common Mistakes:

Calling parent method without instance
Confusing self with class name
Ignoring super() usage

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Identify the problem in this code:

Step 1: Check how Base.info() is called

Step 2: Correct call requires passing instance

Final Answer:

Quick Check:

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