The daily ledger

dbreunig/nesformer

dbreunig/nesformer Inspired by qwenputer by Divyansh Agrawal, Drew Breunig baked a working emulator for a Nintendo Entertainment System 6502 CPU into the weights of Qwen3.5-4B. You can now play NES ROMs such as Super…

EuroPython: Humans of EuroPython: Sangarshanan

This week we’d love to thank Sangarshanan, a member of the Communications Team at EuroPython 2026. Unofficially, Sang holds the title of EuroPython’s CMO - Chief Meme Officer. If you’ve ever laughed at our memes, read…

Rodrigo Girão Serrão: Python abi3t: what is it?

Learn what the abi3t and the limited C API are and what that means for Python users. This article explains what the limited C API and the abi3t are to Python developers who don't have experience with C extensions. 15…

Pick a Number Between 1 and 10

A viral tweet says LLMs pick 7 because of gradient descent. The math says it’s more interesting than that. The post Pick a Number Between 1 and 10 appeared first on Towards Data Science.

PyCharm: Compromised eMudhra Certificates: Update Your JetBrains IDEs, ReSharper, .NET Tools, Toolbox App, and Gateway Now

Binning or Feature Selection: Which One Won Us an Insurance Hackathon?

For a year, we believed that supervised binning carried our winning entry to an insurance competition. After four seeds per arm and one shared feature set, the credit belongs elsewhere. The post Binning or Feature…

How to Write Beautiful Python Code With PEP 8

Learn how to write readable, high-quality Python code by following the PEP 8 style guide and using linters and autoformatters to enforce it.

Inheritance and Composition: A Python OOP Guide

Learn how inheritance and composition in Python model is-a and has-a relationships, and when to use each to design flexible object-oriented code.

Python range(): Represent Numerical Ranges

Master the Python range() function, see how it works under the hood, and learn when enumerate() or zip() beat ranges in your loops.

Python's Requests Library (Guide)

The Requests library is the go-to tool for making HTTP requests in Python. Learn how to use its intuitive API to send requests and interact with the web.

GPT-6.1 Terra Draws a Python Reading a Book

Explore GPT-6.1 Terra's Python code, turtle drawing, and responses to small tasks that check modern syntax, release knowledge, focused edits, and made-up functions.

Getters and Setters: Manage Attributes in Python

Learn what Python getter and setter methods are, why properties are usually the better choice, and when getters and setters still make sense.

Your Agent’s Tools Can Make Decisions, Too

Decision models as tools: a hands-on guide The post Your Agent’s Tools Can Make Decisions, Too appeared first on Towards Data Science.

Quiz: Inheritance and Composition: A Python OOP Guide

In this quiz, you'll test your understanding of inheritance and composition in Python. These are two major concepts in object-oriented programming that help model the relationship between two classes. By working through…

The Real Python Podcast – Episode #317: Demystifying Python Memory Management & Choosing a Project Layout

How does Python manage memory behind the scenes? What are the common ways to lay out a Python project? Christopher Trudeau is back on the show this week with another batch of PyCoder's Weekly articles and projects.

Quiz: Python's Mutable vs Immutable Types: What's the Difference?

Find out how Python's mutable and immutable types behave, and see how mutability shapes lists, tuples, dictionaries, and your own classes.

Claude Code Mods: Custom Hooks to Fix My Biggest AI Coding Frustrations

How I built four Claude Code mods to protect API keys, track plan progress, catch untested code, and monitor context usage — with 135 passing tests and up to 100× less overhead than traditional hooks — and why they can…

LernerPython blog, from Reuven Lerner: Pandas MultiIndex: What a two-level index looks like

What does a Python Pandas data frame’s multi-index look like? This: MultiIndex([(0.0, 1), (1.0, 1), (2.0, 1), (3.0, 1), (4.0, 1), (5.0, 1), (6.0, 1)], names=['passenger_count', 'VendorID']) The post Pandas MultiIndex:…

"Michael Kennedy's Thoughts on Technology": Your GitHub language bar is lying (how to fix it)

tl;dr; GitHub’s language bar counts every byte in your repo, including generated docs and test suites. A few lines in .gitattributes tell it what to skip. For my project, that took it from “75% HTML” to roughly 62% Rust…