Debjeet Bhowmik 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
In our exploration of logic, we’ve focused on the explicit boolean values True and False (Post #21) and how to generate them with comparison (Post #22) and logical operators (Post #23). Now, we’re about to uncover a feature that makes Python’s logic especially elegant and concise. This post explores the key Python concept of Truthy … Read more
In Post #22, we learned how to ask simple questions using comparison operators, resulting in a True or False value. This is a great start, but real-world logic is often more complex. We frequently need to check multiple conditions at once. For example: Is the user over 18 and a resident of this country? Does … Read more
In Post #21, we established that Boolean expressions are the “questions” our programs ask to get a True or False answer. Now, it’s time to learn the language for asking those questions. How do we ask if two values are the same, or if one is larger than the other? This is where comparison operators … Read more
Welcome to Part 2 of our Python series: Logic and Control Flow! In Part 1, we built programs that were like a set of instructions read from top to bottom. They were powerful, but they followed the same path every time. Now, we’re going to learn how to make our programs “think”—how to make decisions, … Read more
Congratulations on reaching the end of Part 1 of our Python series! This is a major milestone. You have journeyed from understanding what Python is, to writing your first interactive scripts, and you’ve picked up an entire toolkit of fundamental concepts along the way. In this post, we will first briefly recap the core concepts … Read more