Python - Methods and Behavior Definition
Which of these statements correctly modifies the attribute
age of an object person to 30?Which of these statements correctly modifies the attribute age of an object person to 30?
easy📝 Conceptual Q2 of 15
Step-by-Step Solution
Solution:
Step 1: Understand attribute assignment syntax
In Python, to change an attribute, use dot notation: object.attribute = value.Step 2: Check each option
person.age = 30 uses correct syntax. person.set_age(30) assumes a method exists, which is not guaranteed. age = 30 assigns a variable, not an attribute. person['age'] = 30 uses dictionary syntax, invalid for normal objects.Final Answer:
person.age = 30 -> Option AQuick Check:
Modify attribute = object.attribute = value [OK]
Quick Trick: Use dot notation to change object attributes directly [OK]
Common Mistakes:
- Using dictionary syntax on objects
- Assigning to a variable instead of attribute
- Assuming setter methods exist without checking
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