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  1. Using the len() Function in Python – Real Python

    In this tutorial, you'll learn how and when to use the len () Python function. You'll also learn how to customize your class definitions so that objects of a user-defined class can be used as …

  2. 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.

  3. 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.

  4. 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 …

  5. 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.

  6. 【Panduan Lengkap Fungsi len () di Python】Penjelasan …

    Nov 29, 2025 · Kami akan menjelaskan secara detail cara menggunakan fungsi len () di Python. Mulai dari dasar untuk mendapatkan panjang daftar (list) dan string, hingga penggunaan …

  7. 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 …

  8. len () in Python - Built-In Functions with Examples

    The len() function in Python is a built-in function that returns the number of items in a container, such as a string, list, tuple, dictionary, etc. It calculates the length of the object and is …

  9. 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 …

  10. How to Use len () in Python | note.nkmk.me

    Jan 27, 2024 · In Python, the built-in len() function returns the length (the number of items) of objects of various types, such as lists and strings. Built-in Functions - len () — Python 3.12.1 …