[Solved] Identify the error in this code:class Person: def greet(self): return "Hello" class Student(Person): def greet(): return "Hi" s = Student() print(s.greet()) | Python

Python - Polymorphism and Dynamic Behavior

Identify the error in this code:

class Person:
    def greet(self):
        return "Hello"

class Student(Person):
    def greet():
        return "Hi"

s = Student()
print(s.greet())

AThe greet method in Student is missing the self parameter

BThe greet method in Person should be static

CStudent class should not inherit from Person

DThe print statement is incorrect

Step-by-Step Solution

Solution:

Step 1: Check method signature
In Python, instance methods must include self as the first parameter.
Step 2: Identify error
Student's greet() lacks self, so calling s.greet() raises a TypeError.
Final Answer:
The greet method in Student is missing the self parameter -> Option A
Quick Check:
Instance methods require self parameter [OK]

Quick Trick: Instance methods must include self parameter [OK]

Common Mistakes:

Omitting self in subclass methods
Thinking static methods are needed here
Misunderstanding inheritance requirements

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More Python Quizzes

Identify the error in this code:

Step 1: Check method signature

Step 2: Identify error

Final Answer:

Quick Check:

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