Every Friday, you'll get a recap of the most important and exciting Python and coding news. The Friday Loop also keeps everyone posted on new ArjanCodes courses and any limited offers coming up.
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10 Git Features You Probably Didn’t Know About (But Should!) | Issue #21
Published 7 months ago • 3 min read
Hi there,
Did you know Git has a ton of hidden features that can seriously level up your coding game?
In this week’s video, I explore 10 Git features most developers don't even know about! 😲 From the clever use of Git Notes to the lifesaver that is Git Worktree (ever wish you could work on two branches at once?), I’ve got some cool tips to share.
If you're looking for ways to make your Git workflow smoother and more efficient, you don't want to miss this one. Let’s "git" going! 💻💪 Enjoy the video and happy coding!
Cheers,
Arjan
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I’m super excited to be speaking at PyCon NL on October 10th at the Jaarbeurs in Utrecht!
If you’re attending, be sure to stop by and say hi! 👋 I’ll be diving deep into functional programming and how it can transform your Python code. 🐍✨
Let’s make it an awesome event—see you there! 😉
Why I’m Switching to Polars
In his latest post, Ari Lamstein shares why he’s making the leap from Pandas to Polars for data manipulation.
He highlights Polars’ intuitive syntax and how it simplifies working with dataframes, much like the Tidyverse did for R users. While performance gains are a bonus, it’s the ease of use that sealed the deal.
If you’re looking to level up your data game with something both faster and simpler, this is a must-read. Check out the full blog here.
# Community
Plant_Boy, one of our community members, recently kicked off a great discussion on Discord about what really defines a Senior Engineer/Developer. Is it just a title, or are there concrete differences in responsibilities and expectations?
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Every Friday, you'll get a recap of the most important and exciting Python and coding news. The Friday Loop also keeps everyone posted on new ArjanCodes courses and any limited offers coming up.
Hi there, Have you ever hesitated before hitting git merge or git rebase because… well, who actually understands Git? 🤯 Good news! In this week’s video, I walk through a real-world FastAPI project and show exactly how to merge, fast-forward, and rebase—step by step. No fluff, just practical Git skills you’ll actually use. Plus, I’m sharing some advanced Git tricks to make your workflow smoother. Happy coding and enjoy the video! Cheers, Arjan # News Build TUI Apps with Python’s Textual Ever...
Hi there, You’ve probably heard the phrase: “Coupling is bad.” But what if I told you that coupling is actually necessary? The real issue isn’t that your code has coupling—it’s that some types of coupling are worse than others. 🚨 In this week’s video, I dive into three real-world examples of bad coupling and show you how to refactor them into better designs. We’ll tackle: Global coupling – Why global variables cause headaches and how to avoid them Content coupling – When modules dig too deep...
Hi there, Ever had a function work most of the time but randomly break when you least expect it? That’s a sign your code is brittle. And brittle code means debugging nightmares. The good news? You can avoid this! In this week’s video, I break down: 🔹 Why checking types at runtime is a bad idea 🔹 The best way to handle value constraints without making a mess 🔹 Whether your function should return None or raise an exception 🔹 Why failing fast is the best approach to writing reliable Python And...
