In Post #38, we learned how to use the break statement to exit a loop entirely. It’s our “emergency exit” when we’ve found what we’re looking for or need to stop the whole process immediately. But what if we don’t want to end the whole loop? What if we simply want to skip the current … Read more
So far, the loops we’ve written have all had one thing in common: they run until their natural end. A for loop runs for every item in a sequence, and a while loop runs until its condition becomes false. But what if you need to stop a loop prematurely? Imagine you are searching through a … Read more
We now have a solid understanding of both for and while loops (Post #34, Post #36). We know that for loops are the perfect tool for iterating over sequences, and so far, we’ve mostly used them with strings and the range() function. In this post, we’re going to get a sneak peek at how to … Read more
In our journey through Python’s control flow, we have now learned about two powerful tools for repetition: the while loop (Post #31) and the for loop (Post #34). Both allow you to execute a block of code multiple times, but they are designed for different situations. This post is a practical guide to help you … Read more
In Post #34, we learned that the for loop is the perfect tool for iterating over a sequence like a string or a list. But what if you don’t have a pre-existing sequence? What if you simply want to repeat a block of code a specific number of times, like 5 times or 100 times? … Read more
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