PCPP1 Advanced Object Oriented Programming Practice Question
Which function is used to check if an object is an instance of a class?
Answer choices
Why each option matters
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
isinstance()
isinstance(obj, Class) is the standard way to check inheritance.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
hasattr()
Why it's wrong here
Checks for attributes.
- ✗
issubclass()
Why it's wrong here
This checks class relationships, not instances.
- ✗
type()
Why it's wrong here
type() returns the class, which might not match if there is inheritance.
- ✓
isinstance()
Why this is correct
This handles inheritance correctly.
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Last reviewed August 2026 · checked against the official Python Institute exam blueprint
This PCPP1 practice question is part of Courseiva's free Python Institute certification practice question bank. Courseiva provides original exam-style practice questions with explanations, topic-based practice, mock exams, readiness tracking, and study analytics to help learners prepare for the PCPP1 exam.