Daily Python Tip 🐍🐧

One #python tip per day. Do you have any? Send it to Edited by @simecek, @karlafej, and... you?

[Daily Python Tip 🐍🐧 @python_tip]

@AshrafXplains Interesting, I have not realized that. Thanks!

[Daily Python Tip 🐍🐧 @python_tip]

Python 3.15 is out
- Lazy imports (e.g. 'lazy import json')
- Frozendict builtin
- Free-threaded package support, macOS installer now includes free-threading support by default

https://t.co/byQcSmihe8

[Daily Python Tip 🐍🐧 @python_tip]

the most performant Python charting library, written in Rust - for charts that need 100M points

import xy as z :-)

https://t.co/f8E2YodeLM

[Daily Python Tip 🐍🐧 @python_tip]

In doubts which LLM to use?

uvx whichllm@latest

https://t.co/glbqaRv3lO

[Daily Python Tip 🐍🐧 @python_tip]

How to organize your .claude folder. Somebody should write the same about Cursor :-)

https://t.co/zzCarJ8DSa

[Daily Python Tip 🐍🐧 @python_tip]

Last week, two versions of litellm package (3.4M downloads/day) contains malicious code due to previous compromise of maintainer's PyPI credentials.

This seems as a cool trick to be less vulnerable to such attacks (found on LinkedIn / Hacker news) 👇

[Daily Python Tip 🐍🐧 @python_tip]

I just discovered Behind the Commit podcast! 🎧 (hosted by Mia Bajić 🎙️)

First two episodes feature Python release managers Hugo van Kemenade (3.14&3.15), Pablo Galindo Salgado (3.10&3.11), Łukasz Langa (3.8&3.9)

and

FastAPI creator Sebastián Ramírez

https://t.co/zeV1KbKUbH

[Daily Python Tip 🐍🐧 @python_tip]

I once told at a conference dinner: "I’ve got a PhD, but 90% of my work is just applying @fastdotai stuff"
A senior researcher nodded: "Same" 😅

So when the new course dropped, I needed ~60s to subscribe (2-wk refund)

https://t.co/HFTjy6uJ7f
15% off (and yes, I get 15% too)

[Daily Python Tip 🐍🐧 @python_tip]

Python 3.14 is here! 🎉

Highlights: free-threaded CPython (PEP 779), deferred annotations (PEP 649), t-strings (PEP 750), multiple interpreters (PEP 734), zstd module (PEP 784), faster UUID + nicer errors.

Time to upgrade & test. #Python #Py314

https://t.co/409ww1zDE9

[Daily Python Tip 🐍🐧 @python_tip]

@heysoymarvin Not quite the same! With this approach you can import your Django models, run queries on your local DB or use other functions of your app

from myapp.models import User User.objects.filter(created__gte='2024-01-01').count()

Try doing that in Colab 😉 (Otherwise, I ❤️ Colab)

[Daily Python Tip 🐍🐧 @python_tip]

Need pandas + Jupyter for quick analysis but don't want them in your production dependencies?

uv run --with pandas --with jupyter jupyter lab

One command. Zero environment pollution. ✨

#uv #jupyter #DevTips

[Daily Python Tip 🐍🐧 @python_tip]

Two Python gems I’ve been playing with:

🔁 Tenacity – painless retry logic for anything. No more rolling your own loops + sleeps
https://t.co/2uB7TzHYah

⚡ DumPy – a bold rethink of NumPy: “don’t make me think, just run (fast, on GPUs)”
https://t.co/eZmy0S8akM

Both worth a 👀

[Daily Python Tip 🐍🐧 @python_tip]

Today I learned... `uv init` now not only creates a new Python environment but also creates

├── .gitignore

├── https://t.co/5YvRzH2H49

├── https://t.co/QnZWl1sVHO

├── pyproject.toml

└── .python-version

https://t.co/RB8U6HQOO6

[Daily Python Tip 🐍🐧 @python_tip]

marimo = Jupyter for serious Python work 🔥
- Pure .py files (git-friendly!)
- No more restart & run all
- Deploy as scripts OR interactive web apps
- Built-in SQL support
- Reactive cells that auto-update dependencies

https://t.co/9wEcj8Qt3E

[Daily Python Tip 🐍🐧 @python_tip]

When I started with Python, I was confused by the murky difference between variables and references. 🤔

This 👇 explains it brilliantly:

Why Python has No Variables?
https://t.co/2CvDPJBnVW

[Daily Python Tip 🐍🐧 @python_tip]

Happy (20 + 25)**2
Happy sum(i**3 for i in range(10))
Happy sum(i for i in range(10))**2

#HappyNewYear!

[Daily Python Tip 🐍🐧 @python_tip]

MarkItDown = a tool from Microsoft to convert Word / Excel / PPT / PDF... to Markdown

https://t.co/oAfDVL9n5J

[Daily Python Tip 🐍🐧 @python_tip]

@AIWondersPed No, just basic examples. I recommended it to my students for a homework assignment and I am curious how they apply it.

[Daily Python Tip 🐍🐧 @python_tip]

This is neat! Instead of writing scraping methods yourself, provide a few examples and let `autoscraper` to do it for you.

https://t.co/l6oekcIy56

[Rohan Paul @rohanpaul_ai]

If you want to automatically scrape a website with Python, use `autoscraper` 💡

Its almost magical 🪄 - Instead of writing the scraping logic manually, you provide a few sample values you'd like to scrape, and `autoscraper` will deduce the scraping rules for you.

It learns the scraping rules and returns the similar elements. Then you can use this learned object with new urls to get similar content or the exact same element of those new pages.

`autoscraper` doesn't require detailed XPath or CSS selectors like traditional scraping libraries. Instead, it automates the pattern recognition process by learning from the example you provide.

Let's design an example where we'll scrape the latest headlines from a popular news website. (Disclaimer: Make sure you have the legal right to scrape the desired website; scraping some sites might be against their terms of service).

Suppose we want to scrape the latest headlines from "BBC News" (for demonstration purposes only).

Remember to replace the "BBC News headline example" with an actual headline from the BBC News page so that the model can learn from it. After running the script, you should see a list of scraped headlines.

[Daily Python Tip 🐍🐧 @python_tip]

🐍 Python environments got easier!

uv is the new rust-powered packaging tool that might finally solve the XKCD-famous dependency puzzle https://t.co/97VPCPaPaZ

Quick start:
* `uv run` for most cases
* `uv venv` for virtual envs
* `uv pip` for packages (don't mix with regular pip!)

Fast, simple, cargo-like 🚀

For more, read
* https://t.co/bpMqe66RU4
* https://t.co/XPLWhNNi64