Python checks whether the object you're referring to has the same memory address as the global None object - a very, very fast comparison of two numbers. By comparing equality, Python has …

In this quick and practical tutorial, you'll learn when to use the Python is, is not, == and != operators. You'll see what these comparison operators do under the hood, dive into some …

Nov 14, 2025 · Understanding how to use `is not` correctly can lead to more efficient and bug-free code, especially when dealing with mutable and immutable objects. This blog post will explore …

Dec 11, 2020 · The != operator compares the value or equality of two objects, whereas the Python is not operator checks whether two variables point to the same object in memory.

Apr 11, 2025 · This blog post will dive deep into the concept of `is not`, its usage, common scenarios, and best practices. By the end, you'll have a solid understanding of how to use `is …

Jun 19, 2025 · Python, with its elegant syntax and powerful features, offers developers a rich set of tools for comparison and identity checking. Among these, the '!=' and 'is not' operators …

In this tutorial of Python Examples, we learned how to use the is not operator in Python. The is not operator is used to compare the memory references of two objects and returns True if they are …