[Solved] Find the bug in this code snippet:class Book: def __repr__(self): return Book(title) b = Book() - Ans: Book(title) is undefined; should return a string | Python

Python - Magic Methods and Operator Overloading

Find the bug in this code snippet:

class Book:
    def __repr__(self):
        return Book(title)

b = Book()

ABook(title) is undefined; should return a string

BMissing __str__ method

CClass Book must inherit from object explicitly

DNo bug, code runs fine

Step-by-Step Solution

Solution:

Step 1: Analyze __repr__ return value
The __repr__ method must return a string, but here it returns Book(title), which is invalid because title is undefined and it's not a string.
Step 2: Identify the error
Returning a non-string and using undefined variable causes a NameError and incorrect behavior.
Final Answer:
Book(title) is undefined; should return a string -> Option A
Quick Check:
__repr__ must return string, not object [OK]

Quick Trick: __repr__ must return a string, not an object [OK]

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