Null in Python: Understanding Python's NoneType Object Quiz
Interactive Quiz ⋅ 8 Questions
By Joseph Peart
In this quiz, you’ll test your understanding of Null in Python: Understanding Python’s NoneType Object.
Python uses the keyword None to define null objects and variables. None isn’t defined
to be 0 or any other value. It’s a full-blown object and a first-class citizen of the
language.
By working through this quiz, you’ll revisit when and why to use None as a default
parameter, how to check for None with the identity operators, what NoneType means in
your traceback, and how None behaves under the hood.
The quiz contains 8 questions and there is no time limit. You’ll get 1 point for each correct answer. At the end of the quiz, you’ll receive a total score. The maximum score is 100%. Good luck!
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Course
Python's None: Null in Python
In this course, you'll learn about the NoneType object None, which acts as the null in Python. This object represents emptiness, and you can use it to mark default parameters and even show when you have no result. None is a tool for doing everything with nothing!
Tutorial
Null in Python: Understanding Python's NoneType Object
In this tutorial, you'll learn about the NoneType object None, which acts as the null in Python. This object represents emptiness, and you can use it to mark default parameters and even show when you have no result. None is a tool for doing everything with nothing!
