Using the len () Function in Python
In this tutorial, you’ll learn when to use the len() Python function and how to use it effectively. You’ll discover which built-in data types are valid arguments for len() and which ones you can’t …
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 the Python len () function to quickly find the size of strings, lists, dictionaries, and other data structures. Discover practical examples and common mistakes to …
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.
Python len () Function - Programiz
In this tutorial, we will learn about the Python len () function with the help of examples.
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 · Complete guide to Python's len function covering strings, lists, dictionaries, custom objects, and practical examples.