How to Get Length of List in Python

Discover the Easiest Ways to Calculate List Lengths in Python, a Comprehensive Guide for Beginners and Experts Alike| …

Updated June 9, 2023

|Discover the Easiest Ways to Calculate List Lengths in Python, a Comprehensive Guide for Beginners and Experts Alike|

How to Get Length of List in Python

Definition of the Concept

In Python 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.

Step-by-Step Explanation

To get the length of a list in Python, you’ll use the built-in len() function. Here’s how:

Create a List: First, create a list with some elements.

Example 1: Creating a List with Elements

my_list = [‘apple’, ‘banana’, ‘cherry’]


2. **Use len() Function**: Next, use the `len()` function to get the length of your list.
   ```python
# Using len() Function to Get List Length
list_length = len(my_list)
print(list_length)  # Output: 3

Step-by-Step Example with Multiple Lists

Let’s explore this concept further with multiple lists:

Create Lists: First, create several lists with different numbers of elements.

Example 2: Creating Multiple Lists with Different Lengths

list1 = [‘a’, ‘b’, ‘c’] list2 = [1, 2] list3 = [‘x’, ‘y’, ‘z’, ‘w’]


2. **Get List Lengths**: Now, use the `len()` function to get the length of each list.
   ```python
# Using len() Function to Get List Lengths
print("Length of list1:", len(list1))  # Output: 3
print("Length of list2:", len(list2))  # Output: 2
print("Length of list3:", len(list3))  # Output: 4

Conclusion

In this comprehensive guide, we’ve explored how to get the length of a list in Python. By using the len() function, you can easily determine the number of elements in any list. Whether you’re working with simple lists or complex data structures, understanding how to calculate lengths will make your coding experience more efficient and enjoyable.

How to Get Length of List in Python