PyCoder’s Weekly

Issue #747: Modern OOP, bisect, Django Async, and More (2026-08-11)

2026-08-11T19:30:00+00:00

#747 – AUGUST 11, 2026
View in Browser »

New Book: Modern Object-Oriented Python

Real Python’s new book on classes, Python’s data model, and object-oriented design is out in Early Access. Nine chapters collected from a decade of tutorials, re-edited into one curriculum, and updated for today’s Python.
REAL PYTHON

Binary Search in Python With `bisect`

Python’s bisect module implements binary search for you. Here’s how bisect_left, bisect_right, and insort work, plus recipes for finding the closest match or all values in a range.
TREY HUNNER

Let AI Agents Into Your B2B App. Securely

More of your users are asking to connect AI agents to your product, and you want to say yes. PropelAuth lets you give each agent scoped, revocable access, so you stay in control of what it can do. Learn More →
PROPELAUTH sponsor

Updates on Django’s Async Story

For years, “Django and async” came with an asterisk. The docs themselves warned you off it, but that has changed. Talk Python interviews Carlton Gibson and they talk async in Django.
TALK PYTHON

Articles & Tutorials

Take the 2026 Python Typing Survey

Now in its third year, the Python Typing Survey has become a recognised reference point for the direction of Python’s type system. It’s being referenced in PEPs and presentations to the Python community. Whether you’re an experienced user of Python types or someone who hasn’t yet written your first type annotation, participating in this survey helps the open-source community make Python better for everyone.
SURVEYMONKEY.COM • Shared by Abby Mitchell

Hydra for Python Configuration: Build Modular and Maintainable Pipelines

Hardcoded paths and parameters can quickly drift out of sync across a data science project’s scripts. This article shows how to move them into Hydra configuration files, access values with dot notation, override settings from the command line, swap entire configuration groups, and run experiment sweeps with a single multirun flag.
CODECUT.AI • Shared by Khuyen Tran

📘 Modern Object-Oriented Python: Write Clean, Pythonic Code With OOP

Learn to design classes that feel native to Python: special methods, inheritance vs. composition, properties, data classes, and the SOLID principles. Get Your Copy →
REAL PYTHON sponsor

`asyncio.all_tasks()` Could Silently Drop Tasks on the Free-Threaded Build

A concrete example of how free-threading turns old GIL-era assumptions into silent bugs: asyncio.all_tasks() dropping live tasks from another thread. Useful for anyone porting or debugging code under the free-threaded build. Written by the author of the fix.
DEADLOVELLL.GITHUB.IO • Shared by Timofei Ivankov

Celery: From First Task to Advanced Recipes

Celery is a mature distributed task queue for Python, but many practical details aren’t immediately obvious from the documentation. This guide goes from the basic usage to timeouts, retries, preventing parallel execution, and emulating async/await support.
STANISLAV GOLEV • Shared by Stanislav Golev

Programmatically Developing LLM Prompts With DSPy

How can you move from manually writing prompts for an LLM application toward defining them programmatically? This week on the show, Brett Kennedy returns to discuss his new book “Building LLM Applications with DSPy.”
REAL PYTHON podcast

Nifty Django Feature: `setUpTestData`

The setUp() call in TestCase gets invoked for every single test. Django adds setUpTestData() which only gets called once per test class, meaning your tests can run faster.
TIM SCHILLING

Thoughts on “SIMD in Pure Python”

This article is a response to SIMD in Pure Python and discusses ways of optimizing his code even further.
ALISA SIRENEVA

Since When? Which Python Version Added That

An interesting tool where you paste Python into it to see which version added each feature it uses, or look up a single built-in, module, or piece of syntax.
PYTHONMORSELS.COM

Validating Data With Pointblank in Python

Learn how to validate data in Python with Pointblank: declare quality checks, split clean from failing rows, and rerun validation plans from YAML.
REAL PYTHON

Quiz: Validating Data With Pointblank in Python

REAL PYTHON

Acidica

Ned has written a toy BASIC interpreter in Python. This announcement post tells you why (“for fun”) and talks about the accomplishment.
NED BATCHELDER

Some More Things About Django I’ve Been Enjoying

Julia has been learning Django to create websites in “2010 style”. This post talks about new things she’s picked up along the way.
JULIA EVANS

Sending Emails Using Python

Learn how to send emails with Python using SMTP and smtplib, attach files, format HTML messages, and personalize bulk emails.
REAL PYTHON course

Quiz: Sending Emails Using Python

REAL PYTHON

Projects & Code

xy: Ultra-Fast and Customizable Python Charts

GITHUB.COM/REFLEX-DEV

autowt: A Better `git` Worktree Experience

GITHUB.COM/IRSKEP

vscode-marimo: `marimo` Vscode Extension

GITHUB.COM/MARIMO-TEAM

commerce: Opensource E-Commerce Platform

GITHUB.COM/SPWIG

Build and Inspect Python Packages in GitHub Actions

GITHUB.COM/HYNEK

Events

Weekly Real Python Office Hours Q&A (Virtual)

August 12, 2026
REALPYTHON.COM

Python Nordeste 2026 (PyNE 2026)

August 13 to August 16, 2026
PYTHONNORDESTE.ORG

Python Help: Problems to Solutions

August 13, 2026
NONE

Python Atlanta

August 13 to August 14, 2026
MEETUP.COM

PyCon Korea 2026

August 15 to August 18, 2026
PYCON.KR

DjangoCologne

August 18, 2026
MEETUP.COM

PyCon Ghana 2026

August 20 to August 23, 2026
PYCON.ORG

PyCon Latam 2026

August 20 to August 24, 2026
PYLATAM.ORG

PyCon JP 2026

August 21 to August 24, 2026
PYCON.JP

Happy Pythoning!
This was PyCoder’s Weekly Issue #747.
View in Browser »

[ Subscribe to 🐍 PyCoder’s Weekly 💌 – Get the best Python news, articles, and tutorials delivered to your inbox once a week >> Click here to learn more ]

Issue #746: Free-Threaded NumPy, all, PyTorch, and More (2026-08-04)

2026-08-04T19:30:00+00:00

#746 – AUGUST 4, 2026
View in Browser »

Scaling NumPy on Free-Threaded Python

A recap on the work done in NumPy and CPython to make multi-threaded NumPy workloads scale on the free-threaded build of CPython.
KUMAR ADITYA

Managing Imports With Python’s `all`

Learn how Python’s dunder all variable controls wildcard imports and shapes the public API your packages and modules expose.
REAL PYTHON course

Quiz: Managing Imports With Python’s `all`

REAL PYTHON

Open Source Just Reached Frontier Code Review

An open-source code reviewer just outranked leading closed models. pr-af places #2 of 42 on Code-Review-Bench. The open-source harness plans a custom review per PR, runs reviewer agents in parallel, and verifies every finding against your source before posting inline comments. About 10x cheaper. Star & Deploy
AGENTFIELD.AI sponsor

PyTorch Tutorial for Deep Learning

This article provides a guide for developers with basic Python knowledge looking to explore deep learning using PyTorch.
EVGENIA VERBINA

Announcing PSF Fellow Members for Q2 2026

PYTHON SOFTWARE FOUNDATION

PEP 842: Module Exports

PYTHON.ORG

Articles & Tutorials

Introducing `django-crawl`

During a recent site migration, Adam used the Django test harness to crawl his site looking for missing security headers. In the process he uncovered seven other bugs for a project that had 100% code coverage. He has consolidated the crawling technique for testing into a library: django-crawl.
ADAM JOHNSON

Running `subprocesses` in Python

You can use Python’s subprocess.run() function to launch other programs from within Python.
TREY HUNNER

SIMD in Pure Python

SIMD is Single Instruction, Multiple Data, an approach that does calculations with vectors of data sets. Python doesn’t support it natively, but libraries like NumPy allow you to code this way.
DAVID BUCHANAN

Why the Hardest Concept for Python Devs Is Concurrency

“Concurrency is arguably the hardest concept for Python developers, because the important ideas already assume you understand the operating system underneath.”
OEDOKUMACI.COM • Shared by Oral Ersoy Dokumaci

Stream Subprocess Output in Real Time in PyQt6

Learn how to run external processes from PyQt6 and display their output line-by-line in real time, without blocking the GUI. Covers QProcess and QThread-based approaches with complete working examples.
PYTHONGUIS

Setting Django’s DEBUG Safely

“Deploying Django with DEBUG=True exposes your app to attackers. Learn why it’s risky and how to fail closed so DEBUG=False stays the safe default.”
JAMES OSGOOD

CrewAI in Python: Coordinating Teams of AI Agents

Learn how to use CrewAI to build teams of AI agents in Python, define roles and tools, and coordinate multi-agent workflows that solve complex tasks.
REAL PYTHON

How to Use Google’s Antigravity CLI for AI Code Assistance

Get started with Google’s Antigravity CLI, a terminal-based AI coding agent, and use it to read, review, and refactor your Python code.
REAL PYTHON

Quiz: How to Use Google’s Antigravity CLI for AI Code Assistance

REAL PYTHON

Spy on Function Calls With `unittest.mock` Wraps

Testing terminology distinguishes between different kinds of test doubles: mocks to replace real world behavior, and spies which wrap a function recording information about them. Despite its name, Python’s unittest.mock supports both.
ADAM JOHNSON

Projects & Code

ome-zarr-py:NGFF Specifications for Storing Bioimaging Data

GITHUB.COM/OME

icalendar: `icalendar` Parser Library for Python

GITHUB.COM/COLLECTIVE

django-orm-lens: Django Schema Review

GITHUB.COM/FROWNINGDEV

cnsplots: Python Data Visualization for Complex Datasets

GITHUB.COM/FARIDRASHIDI • Shared by Farid Rashidi

Whoosh: Full-Text Search (BM25F, No Server, No Native Deps)

GITHUB.COM/PRIYA-SUNDARAM-DEV • Shared by Priya Sundaram

Events

Weekly Real Python Office Hours Q&A (Virtual)

August 5, 2026
REALPYTHON.COM

Mocking Demystified: Make Your Unit Tests Stronger

August 6, 2026
LUMA.COM • Shared by Alla Barbalat

Canberra Python Meetup

August 6, 2026
MEETUP.COM

Sydney Python User Group (SyPy)

August 6, 2026
SYPY.ORG

PyCon Indonesia 2026

August 8 to August 10, 2026
PYCON.ID

PyDelhi User Group Meetup

August 8, 2026
MEETUP.COM

Python Nordeste 2026 (PyNE 2026)

August 13 to August 16, 2026
PYTHONNORDESTE.ORG

PyCon Korea 2026

August 15 to August 18, 2026
PYCON.KR

Happy Pythoning!
This was PyCoder’s Weekly Issue #746.
View in Browser »

[ Subscribe to 🐍 PyCoder’s Weekly 💌 – Get the best Python news, articles, and tutorials delivered to your inbox once a week >> Click here to learn more ]

Issue #745: PyPI UI, Finding Classes with the GC, pylock.toml, and More (2026-07-28)

2026-07-28T19:30:00+00:00

#745 – JULY 28, 2026
View in Browser »

Planned Updates to the PyPI User Interface

Over the next few months a new user interface will be rolled out for the Python packaging website, PyPI. The rollout will be done in phases to make sure it is rock solid and to get community feedback. This post talks about the history of PyPI’s UI and what is changing.
NICOLE HARRIS

Find All Instances of a Class With `gc.get_objects()`

If you’re debugging a situation with multiple references to an object and you want to hunt down all instances, the garbage collector module can help you out.
ADAM JOHNSON

Let AI Agents Into Your B2B App. Securely

Tool-Agnostic Python Lock Files With PEP 751 and pylock.toml

Learn how PEP 751 standardizes Python lock files with pylock.toml: generate one with pip or uv, install it with uv or pdm, and retire requirements.txt.
REAL PYTHON

Quiz: Tool-Agnostic Python Lock Files With pylock.toml

REAL PYTHON

Django 6.1 Release Candidate 1 Released

DJANGO SOFTWARE FOUNDATION

Articles & Tutorials

A Versatile LLM Harness & Scraping the Web With Scrapy

Which is more important, the model or the “harness” around an LLM? What are ways to assemble an efficient agentic developer workflow? This week on the show, Ayan Pahwa joins us to discuss harnessing, web scraping, and self-hosting Python applications.
REAL PYTHON podcast

Pip 26.2: `–only-deps` Solves Years of Deployment Hacks

When working with scripts and simpler projects, sometimes you need dependencies installed without the full package. There have been work arounds for years, but now pip 26.2 has a new flag to support this.
JAMES O'CLAIRE

[Registration Closing] Claude Code for Python Developers

By Sunday evening, you’ll have built, debugged, and shipped a complete Python project with an AI agent, and you’ll know how to bring that agentic engineering workflow to your own codebase on Monday. Live on August 1–2, doors close this Friday. Claim Your Spot →
REAL PYTHON sponsor

[ Subscribe to 🐍 PyCoder’s Weekly 💌 – Get the best Python news, articles, and tutorials delivered to your inbox once a week >> Click here to learn more ]

PyCoder’s Weekly

Issue #747: Modern OOP, bisect, Django Async, and More (2026-08-11)

Articles & Tutorials

Projects & Code

Events

Issue #746: Free-Threaded NumPy, __all__, PyTorch, and More (2026-08-04)

Articles & Tutorials

Projects & Code

Events

Issue #745: PyPI UI, Finding Classes with the GC, pylock.toml, and More (2026-07-28)

Articles & Tutorials

Projects & Code

Events

Issue #746: Free-Threaded NumPy, all, PyTorch, and More (2026-08-04)