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, …

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.

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.

Oct 26, 2025 · What is the Len Function in Python? 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. …

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 …

Oct 23, 2025 · Many developers start using len () without fully understanding its behavior or how to apply it across different data types. This article will clarify its purpose, show how to use len …

Nov 14, 2025 · What is len() in Python? The len() function in Python is a built - in function that returns the number of items in an object. It is a very straightforward function that takes a single …

Mar 22, 2025 · In Python, many data structures such as strings, lists, tuples, sets, and dictionaries have a concept of length. The len() function returns an integer value representing the number …

Among these essential tools is the `len` function, a simple yet powerful built-in feature that plays a crucial role in data manipulation and analysis.

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 …