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While I started teaching Python, one of the most common beginner questions I got was about Armstrong numbers. It’s a simple concept, but it’s also a great way to practice loops, conditionals, and functions in Python. In this tutorial, I’ll show you three different methods to check N-digit Armstrong numbers in Python. I’ll also provide … Read more >>
As a developer, I was working on a large data processing project for a client in California. I faced a situation where I needed to declare variables first and only assign values later in the program. If you have been coding in Python for a while, you know that, unlike some other programming languages (like … Read more >>
When I first started coding in Python more than a decade ago, one of the simplest things that tripped me up was printing text exactly the way I wanted. I often needed to display a variable on one line and then move directly to the next line for clarity. At first, I didn’t realize how … Read more >>
I was working on a project where I needed to quickly check the first letter of customer IDs stored in a database. At first, I thought there might be only one way to do this. But after experimenting, I realized Python offers several simple methods to extract the first character of a string. In this … Read more >>
Recently, while working on a data-cleaning project, I ran into a problem where my dataset had unnecessary square brackets around values. For example, instead of “New York”, the data looked like “[New York]”. If you’ve ever imported lists or JSON data into Python, you’ve probably seen this happen too. At first glance, it looks small, … Read more >>
While I was working on a project, I had to clean up messy text data coming from survey forms. Many responses had extra characters at the beginning and end, like brackets, quotes, or even unwanted symbols. At first, I thought Python would have a direct function for this. But just like in Excel, where you … Read more >>
As a Python developer, I was working on a data-cleaning project where I had to process large CSV files exported from a U.S. retail system. The issue was that many of the text fields came wrapped in single or double quotes. At first, I thought Python would have a built-in way to strip quotes from … Read more >>
Recently, I was working on a data-cleaning project where I had to process customer feedback collected from different regions of the USA. The challenge? Many of the text files contained special Unicode characters like emojis, accented letters, and symbols that I didn’t need in my analysis. I quickly realized that removing Unicode characters in Python … Read more >>
When I was working on a Python script that needed to take input from the command line, display results to the user, and log errors separately. The issue was… I realized many beginners (and even some experienced developers) are not fully aware of how stdin, stdout, and stderr work in Python. So, in this tutorial, … Read more >>
I was debugging a Python project where I kept running into the error: At first, it was frustrating. I had been coding in Python for over a decade, yet this error still popped up in the simplest scripts. The truth is, this error is one of the most common Python mistakes. It usually happens when … Read more >>
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