python

In our previous posts, we learned about the while loop. It’s a fantastic tool for repeating a block of code as long as a condition is true, especially when we don’t know how many repetitions we’ll need, like in our menu project from Post #33. But what if our goal is different? What if we … Read more

In Post #32, we learned about the dangers of infinite loops. But what if we could harness that “run forever” power and put it under our control? Many applications, like games or command-line tools, need to run continuously, waiting for user commands, until the user specifically decides to quit. In this mini-project, we will build … Read more

In Post #31, we learned how to use while loops to repeat code. We saw that a proper loop has three key parts: an initialization, a condition, and an update step. That update step, we noted, was the most critical part for ensuring the loop eventually ends. In this post, we’re going to explore what … Read more

In Part 2 so far, we’ve focused on conditional logic—using if, elif, and else to make our programs choose a path. This is one of the two main types of “control flow.” The other, equally important type is repetition. What if you wanted your program to perform the same action multiple times? You could copy … Read more

Over the last several posts, we’ve learned to build decision-making logic using multi-line if, elif, and else statements. These structures are powerful and flexible, but sometimes they can feel a bit verbose for very simple choices. In this post, we’ll learn about a handy Python shortcut for handling simple if-else logic in a single line. … Read more

In our previous posts #28, we built powerful decision-making chains using the if-elif-else structure. This is perfect for choosing one path from a list of mutually exclusive options. But what happens when a decision leads to another, follow-up decision? This is where nested if statements come into play. A nested if is simply an if … Read more

In Post #25, Post #26, and Post #27, we built our conditional logic toolkit with if, else, and elif. Now it’s time to put that powerful decision-making chain into practice with a hands-on mini-project. Today, we will build a complete program that asks a user for their age and, based on that input, grants them … Read more

In Post #26, we mastered the if-else statement, which is perfect for handling two possible outcomes—a clear “this or that” decision. But what happens when the world isn’t so black and white? What if we need to choose between three, four, or even more possible paths? For example, how would we write a program to … Read more

In Post #25, we took a major step in controlling our program’s flow with the if statement. We learned how to execute a block of code only when a condition is True. This is powerful, but it leaves a question unanswered: what happens if the condition is False? Currently, our program just silently skips the … Read more

For the last four posts, we have been assembling our logic toolkit: Booleans (Post #21), comparison operators (Post #22), logical operators (Post #23), and the concept of Truthy/Falsy values (Post #24). It is now time to use these tools to control the very flow of our programs. In this post, you will learn how to … Read more