[Solved] Find the error in this code that tries to update an object's attribute:class Car: def __init__(self): self.speed = 0 def accelerate(self): speed += 10 c = Car() c.accelerate() print(c.speed) | Python

Python - Methods and Behavior Definition

Find the error in this code that tries to update an object's attribute:

class Car:
    def __init__(self):
        self.speed = 0

    def accelerate(self):
        speed += 10

c = Car()
c.accelerate()
print(c.speed)

AUsing speed without self inside accelerate method

BMissing self in accelerate method parameter

CIncorrect print statement syntax

DNo error, code runs fine

Step-by-Step Solution

Solution:

Step 1: Check method parameter
accelerate has self parameter, so it can access attributes.
Step 2: Identify attribute update
Inside accelerate, speed += 10 tries to update speed but misses self. It should be self.speed += 10.
Final Answer:
Using speed without self inside accelerate method -> Option A
Quick Check:
Use self.speed to modify attribute [OK]

Quick Trick: Always use self.attribute to change object state inside methods [OK]

Common Mistakes:

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