Python Lists

A method is a functionality provided by the Python list data type that can be called by specifying the list followed by a dot and followed by the method you want to call. Some examples of methods supported by Python lists are append (adds an item to the end of a list), insert (adds an … Read more

Do you want to know how to check if a list is empty in Python? You are in the right place. Here you will learn three simple ways to do that. To check if a Python list is empty you can use the len() built-in function that returns the number of elements in a list. … Read more

In Python, “flattening” a list means transforming a multidimensional list or a list of lists into a one-dimensional list. It is the technique to simplify the list structure while maintaining the consistency and order of the data structure. The order of the elements in the flattened list of lists remains the same. For example, let’s … Read more

You can convert a list of strings to a list of integers in Python with a for loop that goes through each item in the list of strings, converts it into an int, and appends it to a new list. A more concise alternative is to use a list comprehension. A third option is using … Read more

The following 10 challenges have been created for students who are either new to Python or want to strengthen their existing knowledge of Python lists. These tasks will test your comprehension and improve your ability to manipulate and interact with lists. Exercise 1 Grocery List: Create a list of your favourite groceries, then: Solution to … Read more

Are you trying to sort a list of strings by length with Python and don’t know how? This article shows you how with clear code examples you can follow and reuse. Python’s built-in functions support custom sorting criteria. This is the perfect choice to solve this problem whether you are dealing with a list of … Read more

I’m modifying a Python program that generates a list of strings and for some reason some of the strings in the list are empty. How can I remove empty strings from the list to avoid errors in my program? Method 1: Basic Loop Iteration In this method, we use a simple for loop to iterate … Read more

Knowing how to create a list of random numbers can be very useful when writing Python programs for testing, gaming, or simulations. In this tutorial, we will go through a few techniques to generate a list of random numbers with Python. Generate a List of Random Integers Using the Random Built-in Module You can generate … Read more

A common task in Python is choosing random elements from a list. This can be useful in many scenarios like data sampling, game development, or day-to-day scripts. With this tutorial, you will learn several ways to randomly select elements from a list in Python. Select Random Elements From a Python List Python’s random module, provides … Read more

A list of strings is a common data structure to use in your Python programs. With this tutorial, you will learn to create and manipulate lists of strings in Python. The syntax to create a list of strings is the standard syntax to create any lists in Python, you will specify the strings in the … Read more