Using the len () Function in Python – Real Python
The len() function in Python is a powerful and efficient tool used to determine the number of items in objects, such as sequences or collections. You can use len() with various data types, …
Python len () Function - W3Schools
Definition and Usage The len() function returns the number of items in an object. When the object is a string, the len() function returns the number of characters in the string.
Python len(): A Quick Guide to Counting Elements in Python
Jun 23, 2025 · Learn how to use Python len () to count elements in strings, lists, and more. See examples, common errors, and how to use len () with custom classes.
Python len () Function - GeeksforGeeks
Jul 23, 2025 · The len () function in Python is used to get the number of items in an object. It is most commonly used with strings, lists, tuples, dictionaries and other iterable or container types.
What is Len in Python and How Does It Work?
Oct 26, 2025 · The len function in Python is a built-in utility that returns the number of items in a container, such as lists, tuples, strings, and dictionaries. Understanding its application is …
Python | Built-in Functions | len() | Codecademy
May 23, 2022 · The len() function returns the number of items in an object. It is one of Python’s most commonly used built-in functions that calculates the length or size of various data types …
Python len Function - Complete Guide - ZetCode
Apr 11, 2025 · This comprehensive guide explores Python's len function, which returns the number of items in a container. We'll cover built-in types, custom objects, and practical …
Understanding `len()` in Python: A Comprehensive Guide
Jan 23, 2025 · The len() function in Python is a built-in function that returns the number of items in an object. It takes a single argument, which can be a sequence (such as a string, list, or tuple) …
Understanding the `len ()` Function in Python — codegenes.net
Nov 14, 2025 · The len() function in Python is used to return the length (the number of items) of an object. The object can be a sequence (such as strings, lists, tuples) or a collection (such as …
Python len () Function - Programiz
In this tutorial, we will learn about the Python len () function with the help of examples.