List length in Python

In Python, the len() function is used to find the length or the number of elements in a list. It returns the total count of items present in the list.

The syntax for using the len() function is as follows:

len(my_list)

Here, my_list is the name of the list for which we want to determine the length.

Example

Let's consider a simple example to understand how the len() function works:

fruits = ["apple", "banana", "orange"]
print(len(fruits))

Output:

3

In this example, we have a list named fruits which contains three elements. By using the len() function, we can determine the length of the list, which is 3 in this case.

Important Points

Here are a few important points to remember about the len() function when working with lists:

• The len() function works only with sequences like lists, tuples, strings, etc.
• The function returns an integer value representing the length of the list.
• If the list is empty, the length will be 0.
• The len() function can also be used with other data structures like strings to find the length of characters.

Now that you understand how to use the len() function with lists in Python, you can easily determine the number of elements present in any list and make more informed decisions in your programming logic.