Python quiz

Test your Python knowledge with a free interactive quiz — 49 questions with answers and explanations. No signup needed to play.

What is a Python decorator?

1. What is a Python decorator?
2. What is the `self` parameter in Python class methods?
3. How do you create a set in Python?
4. What does `str.split()` do?
5. How do you open a file safely in Python?
6. What is the result of `3 // 2` in Python?
7. What is Python?
8. What is the difference between `is` and `==` in Python?
9. Which data structure uses key-value pairs in Python?
10. What is the output of `bool([])` in Python?
11. What does `*args` allow in a Python function?
12. How do you create a list comprehension for squares of 1–5?

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