Find Length of List in Python

This tutorial will discuss about a unique way to find length of list in Python.

To find the length of a List in Python, we can use the len() method of Python. It internally calls the __len__() method of the object which we pass into it. Also, the List has an overloaded implementation of __len__() method, which returns the count of number of elements in the list.

So basically len() method will return the number of elements in the list.

Let’s see some examples,

Example 1 : Get the Lenth of List in Python

We have a list of numbers and we will try to get the count of numbers in that list,

Let’s see the complete example,

listObj = [32, 45, 78, 91, 17, 20, 22, 89, 97, 10]

# Get the number of elements in list
size = len(listObj)

print(f'The length of List "listObj" is: {size}')

Output

The length of List "listObj" is: 10

Example 2 : Get the Lenth of List in Python

This is an another example, in which we have a list of strings and we will try to get the number of elements in the list of strings using the len() method.

Let’s see the complete example,

listObj = ['This', 'is', 'a', 'very', 'short', 'example']

# Get the number of elements in list
size = len(listObj)

print(f'The length of List "listObj" is: {size}')

Output

The length of List "listObj" is: 6

Summary

So today we learn how to use len() method to get the size of a list in Python.