Home - News ( United States | United Kingdom | Italy | Germany ) - Football scores

Showing content from https://www.geeksforgeeks.org/python-check-whether-list-empty-not/ below:

Check if a list is empty or not in Python

Last Updated : 24 Oct, 2024

In article we will explore the different ways to check if a list is empty with simple examples. The simplest way to check if a list is empty is by using Python's not operator.

The not operator is the simplest way to see if a list is empty. It returns True if the list is empty and False if it has any items.

a = []
if not a:
    print("The list is empty")
else:
    print("The list is not empty")

Explanation:

• not a returns True because the list is empty.
• If there were items in the list, not a would be False.

We can also use len() function to see if a list is empty by checking if its length is zero.

a = []
if len(a) == 0:
    print("The list is empty")
else:
    print("The list is not empty")

Explanation: len(a) returns 0 for an empty list.

Lists can be directly evaluated in conditions. Python considers an empty list as False.

a = []
if a:
    print("The list is not empty")
else:
    print("The list is empty")

Explanation: An empty list evaluates as False in the if condition, so it prints "The list is empty".

RetroSearch is an open source project built by @garambo | Open a GitHub Issue

Search and Browse the WWW like it's 1997 | Search results from DuckDuckGo

HTML: 3.2 | Encoding: UTF-8 | Version: 0.7.4