Category: Python
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New: In-browser Python/Pandas/Git exercises, with AI support
Over my 30+ years teaching Python, I’ve included practice exercises in all of my courses. And when I started to teach Git and Pandas, I made sure to include practice exercises there, too. That’s because there’s no learning without practice. At least, there’s no effective learning. Frustration isn’t fun, but it’s a necessary part of…
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Is Python becoming Pinyin?
I just got back from PyCon US. It was delightful; I saw old friends, met new ones, gave a tutorial on decorators, and spoke at the education summit. I’m a PyCon US sponsor, which means that I also had a booth, giving out T-shirts, books, stickers, and flyers about the LernerPython platform. Of course, the…
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Take agentic coding to the next level
If you’re like me, then you’ve lately been exploring agentic coding, having AI write code on your behalf. What will be the impact on our work developing software? On hiring? On training? From what I can tell, the question isn’t whether we’ll be using agentic coding, but how we do so. Knowing how AI writes…
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Do you teach Python? Then check out course-setup
TL;DR: If you teach Python, then you should check out course-setup (https://pypi.org/project/course-setup/) at PyPI! I’ve been teaching Python and Pandas for many years. And while I started my teaching career like many other instructors, with slides, I quickly discovered that it was better for my students — and for me! — to replace them with…
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What’s new in Pandas 3?
🎉 Pandas 3 is out! As of last week, saying “pip install pandas” or “uv add pandas” gives you the latest version. What’s new? What has changed? I’ve got a whole YouTube playlist, explaining what you need to know: https://www.youtube.com/playlist?list=PLbFHh-ZjYFwFWHVT0qeg9Jz1TBD0TlJJT
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Learn to code with AI — not just write prompts
The AI revolution is here. Engineers at major companies are now using AI instead of writing code directly. But there’s a gap: Most developers know how to write code OR how to prompt AI, but not both. When working with real data, vague AI prompts produce code that might work on sample datasets but creates…
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We’re all VCs now: The skills developers need in the AI era
Many years ago, a friend of mine described how software engineers solve problems: In other words: You can be the person writing the code, and solving the problem directly. Or you can manage people, specifying what they should do. Or you can invest in teams, telling them about the problems you want to solve, but…
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Build YOUR data dashboard — join my next 8-week HOPPy studio cohort
Want to analyze data? Good news: Python is the leading language in the data world. Libraries like NumPy and Pandas make it easy to load, clean, analyze, and visualize your data. But wait: If your colleagues aren’t coders, how can they explore your data? The answer: A data dashboard, which uses UI elements (e.g., sliders,…
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Reuven’s 2025 in review
Can you believe that 2025 is almost over? It was full of big events for me, and yet it also whizzed past at breakneck speed. And so, before we start 2026, I want to share a whole bunch of updates on what I’ve done over the last 12 months — and where I plan to…
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30 things I’ve learned from 30 years as a Python freelancer
30 years! It’s hard to believe, but it was in December 1995 (i.e., 30 years ago) that I went freelance, giving up a stable corporate paycheck. And somehow, I’ve managed to make it work: During that time, I’ve gotten married, bought a house, raised three children, gone on numerous vacations, and generally enjoyed a good…