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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.
Hey there, Heard of MCP? It stands for Model Context Protocol: an open standard that lets AI models like Claude or ChatGPT connect to real tools and data. In my latest video, I explain what MCP actually is, and show a working example where Claude can search YouTube videos using MCP. In the video you’ll learn: Why AI models can’t just call your API How MCP bridges that gap Two ways to structure your MCP integration Happy coding! Cheers, Arjan # News Upcoming Python Documentary CultRepo...
Hi there, We all use def to define functions in Python. But did you know there are at least 7 other ways to do it? Some of them are useful. Some are questionable. And the last one is so ridiculous, it might crash your interpreter. In this week’s video, I walk through each method, explain how it works, why you should use it (or not), and what it teaches us about how Python works under the hood. This was a really interesting topic to explore. I learned a lot from it and I hope you will too....
Hi there, Functional programming in Python can be elegant… but not always. ⚠️ In this week’s video, I walk through four common scenarios where replacing for loops with map() and filter() actually leads to worse code. Not just less readable—but also harder to debug, more error-prone, and sometimes even misleading. We’ll dive into: Exception handling that becomes a mess inside a lambda Side effects (like writing to files) that violate functional principles Nested logic that turns into...