[Solved] Identify the error in the following code that tries to add a custom attribute speed to object car:class Vehicle: pass car = Vehicle() car["speed"] = 100 print(car.speed) | Python

Python - Custom Exceptions

Identify the error in the following code that tries to add a custom attribute speed to object car:

class Vehicle:
    pass

car = Vehicle()
car["speed"] = 100
print(car.speed)

AUsing dictionary syntax on object causes TypeError

BMissing quotes around attribute name

CAttribute speed is not defined

Dprint statement syntax error

Step-by-Step Solution

Solution:

Step 1: Understand attribute assignment vs dictionary syntax
Objects do not support item assignment like dictionaries unless __setitem__ is defined.
Step 2: Analyze the code error
Line car["speed"] = 100 tries to assign using dictionary syntax, causing a TypeError. print(car.speed) will fail because speed attribute was never set.
Final Answer:
Using dictionary syntax on object causes TypeError -> Option A
Quick Check:
Objects need dot notation, not brackets = TypeError [OK]

Quick Trick: Use dot notation, not brackets, to add attributes [OK]

Common Mistakes:

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