The main problem with checking if a list is not empty is that it can be slow. if not None or not '': print('Not empty!') The first condition is if “not None”, which evaluates to True. The second condition is “or not ””, which also evaluates to True. Therefore, the entire...
In this post, we will see how to check if list is empty in python. It is very easy to check if list is empty in python. You can use "not" to check if list is empty in Python. Let’s understand with the help of simple example. 1 2 3 4 5 6 7 8 9 10 11 12 13 list1...
if not my_list: print("List is empty") This is using the Truth Value Testing in Python, also known as implicit booleaness or truthy/falsy value testing.Among other rules it defines that empty sequences and collections like '', (), [], {}, set(), range(0) are all considered false...
In this tutorial, we'll go over examples on How to Check if List is Empty in Python. We'll be using the len() function, Pep-8 Recommended Style, as well as the bool() function.
Check if Python list is empty using methods such as if not my_list, len(), comparing to an empty list, all(), exception handling, bool(),...
The Pythonlen()is used to get the total number of characters present in the string and check if the length of the string is 0 to identify the string is empty. Actually, thelen()function returns the length of an object. The object can be a string, a list, a tuple, or other objects...
Python has a set of built-in library objects and functions to help us with this task. In this tutorial, we'll learn how to check if a file or directory is empty in Python. Distinguish Between a File and a Directory When we'd like to check if a path is empty or not, we'll want...
We can use the set empty check to ensure that a user’s task list is not empty before displaying it. If the set representing the user’s tasks is empty, we can display a message like No tasks found or provide alternative content to guide the user in creating new tasks. This tutorial ...
How to check if a Python dictionary is empty. You can check if the dictionary is empty or not using the logical method, logical operator, and if statement
Linq; namespace check_empty_list { class Program { static void Main(string[] args) { List<string> emptyList = new List<string>(); if (emptyList.Count == 0) { Console.WriteLine("List is Empty"); } else { Console.WriteLine("Not Empty"); } } } } Output:...