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In Python, which method type is appropriate for updating a variable that is shared across all instances of a class?

easy🧠 Conceptual Q1 of Q15
Python - Class Methods and Static Methods
In Python, which method type is appropriate for updating a variable that is shared across all instances of a class?
AClass method
BInstance method
CStatic method
DProperty method
Step-by-Step Solution
Solution:
  1. Step 1: Understand class-level attributes

    Class-level attributes are shared by all instances of a class.
  2. Step 2: Identify method types

    Instance methods operate on individual objects; static methods don't access class or instance data; class methods receive the class as the first argument and can modify class attributes.
  3. Final Answer:

    Class method -> Option A
  4. Quick Check:

    Class methods modify class attributes [OK]
Quick Trick: Use class methods to modify shared class data [OK]
Common Mistakes:
MISTAKES
  • Using instance methods to modify class attributes
  • Using static methods which lack access to class data

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