Definition and Usage The None keyword is used to define a null value, or no value at all. None is not the same as 0, False, or an empty string. None is a data type of its own (NoneType) and only None can …

Oct 20, 2013 · Martijn's answer explains what None is in Python, and correctly states that the book is misleading. Since Python programmers as a rule would never say. Assigning a value of None to a …

In this tutorial, you'll learn about Python None and how to use it properly in your code.

Python uses the keyword None to define null objects and variables. While None does serve some of the same purposes as null in other languages, it’s another beast entirely.

Jul 23, 2025 · None is used to define a null value or Null object in Python. It is not the same as an empty string, a False, or a zero. It is a data type of the class NoneType object. Python None is the function …

May 10, 2023 · In Python, None is an instance of NoneType. It represents the absence of a value. For example, a function that does not explicitly return a value with return will return None. As …

Feb 15, 2025 · In Python, None is a special constant used to represent the absence of a value or a null value. It is often used as a placeholder or default value in functions, variables, and data structures. …

Nov 10, 2025 · Learn how Python’s None object represents the absence of a value. Discover its internal design, common use cases, best practices, and how it compares with null in other languages.

Learn about the None data type in Python, its uses, and how to effectively use it in your code. Explore code examples and understand how None can enhance the clarity and correctness of your programs.

Oct 2, 2024 · Learn about None in Python, why it's used, how to check for it, and practical examples to solidify your understanding.