How to Find Len of List in Python

In this article, we will explore how to find the length of a list in Python. We’ll cover the basics, step-by-step examples, and code snippets to make it easy to understand. …

Updated May 15, 2023

In this article, we will explore how to find the length of a list in Python. We’ll cover the basics, step-by-step examples, and code snippets to make it easy to understand.

Definition of the Concept

In programming, a list is a collection of items that can be of any data type, including strings, integers, floats, and other lists. The length of a list refers to the number of elements it contains. In Python, lists are denoted by square brackets [].

Step-by-Step Explanation

To find the length of a list in Python, you can use the built-in function called len(). Here’s a step-by-step breakdown:

Create a list: First, create a list with some elements. For example:

fruits = ['apple', 'banana', 'cherry']

Use the len() function: Next, use the len() function to get the length of the list. You can do this by calling the len() function on your list, like so:

length = len(fruits)

Print the result: Finally, print the length of the list to see the result.

Code Snippets

Here’s an example code snippet that demonstrates how to find the length of a list in Python:

# Create a list
fruits = ['apple', 'banana', 'cherry']

# Use the len() function to get the length of the list
length = len(fruits)

# Print the result
print("The length of the list is:", length)

Output:

The length of the list is: 3

Code Explanation

Let’s break down what each part of the code does:

fruits = ['apple', 'banana', 'cherry']: This line creates a list called fruits with three elements: 'apple', 'banana', and 'cherry'.
length = len(fruits): This line uses the len() function to get the length of the fruits list. The result is stored in the variable length.
print("The length of the list is:", length): Finally, this line prints the length of the list.

Readability Score