PyCoder’s Weekly

Issue #734: Dunder-Gets, Django Tasks in Prod, Codex CLI, and More (2026-05-12)

2026-05-12T19:30:00+00:00

#734 – MAY 12, 2026
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Do You Get It Now?

Learn about Python’s .__getitem__(), .__getattr__(), .__getattribute__(), and .__get__(): how they’re different and where to use them.
STEPHEN GRUPPETTA

Using Django Tasks in Production

Django added a generic API for dealing with concurrent tasks in version 6. This post talks about how it has been used in production.
TIM SCHILLING

Use Codex CLI to Enhance Your Python Projects

Learn how to use Codex CLI to add features to Python projects directly from your terminal, without needing a browser or IDE plugins.
REAL PYTHON course

Depot CI: Built for the Agent era

Depot CI: A new CI engine. Fast by design. Your GitHub Actions workflows, running on a fundamentally faster engine — instant job startup, parallel steps, full debuggability, per-second billing. One command to migrate →
DEPOT sponsor

Articles & Tutorials

Handling Schema Issues in Polars

You’ve got this great data pipeline going until one day it stops working. A schema error causes by a column upstream has stopped you in your tracks. This post talks about the four different causes of schema errors and what to do about them.
THIJS NIEUWDORP

Textual: An Intro to DOM Queries (Part II)

Textual is a TUI framework library for building terminal applications. It uses a DOM to represent the widgets in the application, and that DOM is queryable. This is part 2 in a series on how to find things in your Textual DOM.
MIKE DRISCOLL

Everything You Always Wanted to Know About PyCon Sprints!

PyCon US includes coding sprints to work on CPython itself, or projects in the ecosystem like Django, Flask, and BeeWare. This post tells you all about sprints and how you can join in on the fun.
DEB NICHOLSON

Why TUIs Are Back

Terminal User Interfaces are seeing a resurgence in the tools space. This opinion piece briefly talks about the history of interfaces and why we are where we are now.
ALCIDES FONSECA

Parallel Python at Anyscale With Ray

Talk Python interviews Richard Liaw and Edward Oakes. They talk about Ray, an open source Python framework a distributed execution engine for AI workloads.
TALK PYTHON podcast

Python 3.14.5 Release Candidate

Normally nobody fusses over a release candidate of a point release, but 3.14.5 includes a major change: rolling back of the incremental garbage collector.
HUGO VAN KEMENADE

Wagtail 7.4: Custom Page Explorer, Preview Checks & More

Between autosave improvements, new ways to sort your pages, and a content checker upgrade, you’ll have a lot of reasons to move to Wagtail 7.4
MEAGEN VOSS

The Simplest MCP Example Possible in Python

This guide introduces you to connecting your code to a local LLM model. It covers Ollama and FastMCP and what you can do with these tools.
AL SWEIGART

ChatterBot: Build a Chatbot With Python

Build a Python chatbot with the ChatterBot library. Clean real conversation data, train on custom datasets, and add local AI with Ollama.
REAL PYTHON

Hardening Firefox With Claude Mythos Preview

New details about what Mozilla found and how agentic harnesses helped them reproduce real bugs and dismiss false positives.
MOZILLA

Projects & Code

pytest-fly: pytest Observer

GITHUB.COM/JAMESABEL

Pymetrica: A Codebase Analysis Tool

GITHUB.COM/JUANJFARINA • Shared by Juan José Farina

PyWry: Cross-Platform Rendering Engine and UI Toolkit

GITHUB.COM/DEELEERAMONE

secure: HTTP Security Headers for FastAPI, Flask, Django

GITHUB.COM/TYPEERROR • Shared by Caleb Kinney

Kirokyu: Modular Task Management System

GITHUB.COM/AMRYOUNIS • Shared by Amr Younis

Events

Weekly Real Python Office Hours Q&A (Virtual)

May 13, 2026
REALPYTHON.COM

PyCon US 2026

May 13 to May 20, 2026
PYCON.ORG

Python Atlanta

May 14 to May 15, 2026
MEETUP.COM

Chattanooga Python User Group

May 15 to May 16, 2026
MEETUP.COM

PyDelhi User Group Meetup

May 16, 2026
MEETUP.COM

PyData London

June 5 to June 7, 2026
PYDATA.ORG • Shared by Tomara Youngblood

Happy Pythoning!
This was PyCoder’s Weekly Issue #734.
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Issue #733: marimo pair, Finding Bugs With LLMs, httpxy, and More (2026-05-05)

2026-05-05T19:30:00+00:00

#733 – MAY 5, 2026
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Agentic Data Science Pair Programming With `marimo pair`

How do you add agent skills to your data science workflow? How can a coding agent assist with data wrangling and research? This week on the show, Trevor Manz from marimo joins us to discuss marimo pair.
REAL PYTHON podcast

Using LLMs to Find Python C-Extension Bugs

LLM’s can be powerful tools to help find problems with code, but without a human in the loop things can be problematic. This post talks about how one coder is approaching the challenge.
JAKE EDGE

Positron: The Data Science IDE from Posit PBC

Positron is a free IDE built for Python data science. AI assistance, interactive data frames, Jupyter notebooks, and instant app deployment, all in one place. Stop context-switching. Start shipping. Download free.
POSIT PBC sponsor

`httpxyz` One Month In

httpxyz is a fork of httpx created one month ago. This blog post describes how the journey has gone so far and where they’re going in the future.
MICHIEL BEIJEN

PyPy v7.3.22 Released

PYPY.ORG

PyCon US 2026: Call for Volunteers

PYCON.BLOGSPOT.COM

PEP 661: Sentinel Values (Accepted)

PYTHON.ORG

PEP 831: Frame Pointers Everywhere: Enabling System-Level Observability for Python (Accepted)

PYTHON.ORG

PEP 820: PySlot: Unified Slot System for the C API (Accepted)

PYTHON.ORG

PEP 829: Structured Startup Configuration via .site.toml Files (Accepted)

PYTHON.ORG

Articles & Tutorials

Building the Async Python Task Queue I Wished Existed

If you’ve ever written async Python for your API and then switched to synchronous code for your background tasks, you know something is off. Repid v2 is an attempt to fix that - an async-first, AsyncAPI-native task queue built over two years of production use, countless rewrites, and one hand-written AMQP 1.0 implementation.
ALEKSUL.SPACE • Shared by Alex

Inverse Sapir-Whorf and Programming Languages

The Sapir-Whorf hypothesis is the idea that the languages you speak influence the thoughts you can have. The inverse is the idea that your language limits what you can’t but say. When applied to programming this has subtle results determining core ideas like execution order.
LUKE PLANT

B2B AI Agent Auth Support

Your users are asking if they can connect their AI agent to your product, but you want to make sure they can do it safely and securely. PropelAuth makes that possible →
PROPELAUTH sponsor

What’s New in Pip 26.1

pip 26.1 adds support for dependency cooldowns, experimental support for reading/installing from standard lockfiles (pylock.toml), fixes several long-standing limitations of the 2020 resolver, and drops support for Python 3.9.
RICHARD SI

Python Packaging Council Approved

PEP 772 established the Packaging Council, an elected group to set standards for packaging standards and tools. The PEP was recently accepted, and this post talks about the group and what it took to get here.
JAKE EDGE

Choosing a Python Logging Library in 2026

This post compares Python’s standard logging module, structlog, and Loguru. It includes real benchmarks, OpenTelemetry integration paths, and framework specific guidance for Django, FastAPI, and Flask
AYOOLUWA ISAIAH

⏰ Last Chance: Claude Code Live Course May 6–7

Developers who learn to work with AI agents will have an edge that’s hard to close. This 2-day hands-on course takes you from zero to a working Python project built entirely with Claude Code.
REAL PYTHON sponsor

Before GitHub

There is a lot of talk on the net lately about the state of GitHub. This opinion piece by Armin talks about what Open Source was like before GitHub: it was reputation-driven and full of friction.
ARMIN RONACHER

It’s Time to Redesign `djangoproject.com`

The site that hosts the Django framework is overdue for a refresh. This post describes how they’re going through the process and what to expect next.
DJANGO SOFTWARE FOUNDATION

Testing Your Code With Python’s `unittest`

Learn how to use Python’s unittest framework to write unit tests for your code, including test cases, fixtures, and test suites.
REAL PYTHON course

Quiz: Testing Your Code With Python’s `unittest`

REAL PYTHON

AI Coding Agents Guide: A Map of the Four Workflow Types

AI coding agents come in four types: IDE, terminal, PR, and cloud. Learn how each workflow fits into modern Python development.
REAL PYTHON

Self Hosting Apps for Python People

Talk Python interviews Alex Kretzschmar and they talk about what it takes to move from the cloud to hosting things yourself.
TALK PYTHON podcast

Projects & Code

cadquery: CAD Scripting Framework

GITHUB.COM/CADQUERY

secure: HTTP Security Headers for Python Web Applications

GITHUB.COM/TYPEERROR • Shared by Caleb Kinney

tryke: Rust-Based, Jest-Style Test Runner

GITHUB.COM/THEJCHAP

StegoForge: Zero-Dependency Python Steganography

GITHUB.COM/NOUR833 • Shared by Nour Islem KOOLI

miniword: A WYSIWYG Word Processor in Python

CODEBERG.ORG

Events

Weekly Real Python Office Hours Q&A (Virtual)

May 6, 2026
REALPYTHON.COM

Canberra Python Meetup

May 7, 2026
MEETUP.COM

Sydney Python User Group (SyPy)

May 7, 2026
SYPY.ORG

DFW Pythoneers 2nd Saturday Teaching Meeting

May 9, 2026
MEETUP.COM

PiterPy Meetup

May 12, 2026
PITERPY.COM

Leipzig Python User Group Meeting

May 12, 2026
MEETUP.COM

PyCon US 2026

May 13 to May 20, 2026
PYCON.ORG

Happy Pythoning!
This was PyCoder’s Weekly Issue #733.
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Issue #732: Web Scraping, Altair Charts, OpenAI's API, and More (2026-04-28)

2026-04-28T19:30:00+00:00

#732 – APRIL 28, 2026
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`browser-use` vs. Playwright: Which to Pick for Web Scraping?

Follow along in this walk-through building a Hacker News synthesizer with browser-use, then see it fail on a harder Newegg scraping task. Includes a side-by-side comparison with Playwright and a breakdown of when each tool is the right call.
CODECUT.AI • Shared by Khuyen Tran

Altair: Declarative Charts With Python

Build interactive Python charts the declarative way with Altair. Map data to visual properties and add linked selections. No JavaScript required.
REAL PYTHON

Positron: The Data Science IDE from Posit PBC

Leverage OpenAI’s API in Your Python Projects

Learn how to use the ChatGPT API with Python’s openai library to send prompts, control AI behavior with roles, and get structured outputs.
REAL PYTHON course

Quiz: Leverage OpenAI’s API in Your Python Projects

REAL PYTHON

Python Software Foundation Fellow Members for Q1 2026!

PYTHON SOFTWARE FOUNDATION

PEP 708: Extending the Repository API to Mitigate Dependency Confusion Attacks (Rejected)

PYTHON.ORG

PEP 806: Mixed Sync/Async Context Managers With Precise Async Marking (Rejected)

PYTHON.ORG

PEP 833: Freezing the HTML Simple Repository API (Draft)

PYTHON.ORG

Articles & Tutorials

Fixing a Memory “Leak” From Python 3.14’s Incremental Garbage Collection

Adam encountered an out-of-memory error while migrating a client project to Python 3.14. The issue occurred when running Django’s database migration command on a limited-resource server, and seemed to be caused by the new incremental garbage collection algorithm in Python 3.14.
ADAM JOHNSON

Logging to File and to Textual Console

When writing TUI applications in Textual you can’t just print out your debug info since the terminal is controlled by the framework. This article shows you how to log and use Textual’s built-in debug console.
MIKE DRISCOLL

Beyond Basic RAG: Build Persistent AI Agents

Master next-gen AI with Python notebooks for agentic reasoning, memory engineering, and multi-agent orchestration. Scale apps using production-ready patterns for LangChain, LlamaIndex, and high-performance vector search. Explore & Star on GitHub.
ORACLE sponsor

Read the Docs Now Supports `uv` Natively

Popular open source documentation site Read the Docs has announced they now support native uv in .readthedocs.yaml for Python dependency installation. Learn how to use it in your configurations
READ THE DOCS

PyTexas 2026 Recap

Per-talk notes from PyTexas 2026 in Austin: Hynek on domain modeling, Dawn Wages on specialization, MCP security, PEP 810 lazy imports, free-threading, Ruff, ty, uv, supply chain.
BERNÁT GÁBOR

The Carbon Footprint of Wagtail AI

One of the package maintainers for Wagtail AI shares his method for measuring the carbon impact of the different AI tasks users can do and goes over the initial results.
WAGTAIL.ORG • Shared by Meagen Voss

Gemini CLI vs Claude Code: Which to Choose for Python Tasks

Gemini CLI vs Claude Code: compare setup, performance, code quality, and cost to find the right Python AI coding tool for your workflow.
REAL PYTHON

Learn the Agentic Coding Workflow That Actually Works on Real Projects

65% of Python developers are stuck using AI for small tasks that fall apart on anything real. This 2-day live course (May 6-7 via Zoom) walks you through building a complete Python CLI app with Claude Code, from an empty directory to a shipped project on GitHub.
REAL PYTHON

Implementing OpenTelemetry in FastAPI

Learn how you can observe your FastAPI web apps with OpenTelemetry, including how to integrate it and why it is important.
SIGNOZ.IO • Shared by Dhruv Ahuja

Building a Python Library in 2026

So you want to build a Python library in 2026? Here’s everything you need to know about the state of the art.
STEPHEN IF

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