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- Python Weekly (Issue 759 August 20 2026)
Python Weekly (Issue 759 August 20 2026)
Rahul Chaudhary
August 20, 2026
In partnership with
Welcome to issue 759 of Python Weekly. Let's get straight to the links this week.
The Ultimate Claude Code Guide to ship like Anthropic engineers
AI will write 90% of code by the end of 2026, and only 10% of developers will stay relevant.
The engineers in that 10% aren't smarter. They just know how to use AI.
We put together the exact playbook Anthropic engineers use to make sure you're in the top 10%.
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News
Modular has fully open-sourced the Mojo programming language, including its compiler and tooling, under the Apache 2.0 license with LLVM exceptions. Developers can now build Mojo from source, modify the compiler and standard library, run the test suite, and explore how the language targets GPUs, AI accelerators, and other advanced compute.
Articles, Tutorials and Talks
This is a roundup of 15 Python libraries that can make code cleaner, faster, and easier to maintain across areas like configuration, serialization, testing, scheduling, and UI development. It also highlights practical tools for dependency injection, state machines, data analysis, and more reliable datetime handling.
A handy Polars cheat sheet covering common DataFrame operations in Python, including loading data, filtering, selecting, joining, reshaping, and handling missing values. It serves as a quick-reference guide for translating everyday data-wrangling tasks into Polars expressions.
A Python security vulnerability caused IDNA 2003 handling to use the interpreter’s current Unicode case-folding rules instead of the Unicode 3.2 rules required by the specification.The fix makes Python’s case-folding behavior match Unicode 3.2 for StringPrep, restoring standards-compliant IDNA encoding and addressing CVE-2026-17084.
This is a practical guide to building a modern full-stack application with FastAPI and Pydantic on the Python backend and React and TypeScript on the frontend. It explores how their different type systems work together and shows how generating frontend types from FastAPI’s OpenAPI schema prevents backend and frontend models from drifting apart.
This post explores important differences between Polars and SQL that can cause unexpected results when moving between the two, including row ordering, column independence, literals, null handling, and broadcasting. It explains how understanding these different mental models can help developers write safer Polars code and more reliably translate data workflows between Polars and SQL.
This is an introduction to django-waffle, a production-ready Django package for controlling feature rollouts through flags, switches, and sampling. It enables gradual releases, A/B testing, and quick kill switches for features that need to be disabled without redeploying
Build your entire GUI in pure Python code, no .ui files required.
The article explores what Python packaging is missing to support reproducible builds on PyPI, allowing third parties to verify that distributions match their source code and haven't been tampered with. It proposes recording source information and build tools, using SBOMs, and having trusted verifiers report successfully reproduced packages back to PyPI.
The post introduces pcode_graph, a Python library for extracting semantic control and data-flow graphs from binary code, independent of specific CPU instructions. It uses these graphs with a GNN to identify similar functions across architectures, compilers, and optimization levels, achieving results comparable to a leading benchmark approach.
Interesting Projects, Tools, and Libraries
Local UI to run and train LLMs and diffusion models, including Qwen3.8, Kimi K3, MiniMax-H3, Gemma 4, DeepSeek-V4, FLUX and more.
Claude-first, portable paid-media operations for agencies, consultants, and in-house performance teams.
An open-source typeface that protects written work by poisoning unauthorized AI training datasets.
Fine-tune and post-train LLMs in one command. No SSH, no config hell.
Run local LLMs on Apple Silicon, around twice as fast.
OpenFlight is an open-source golf launch monitor built around the OPS243-A Doppler radar, with an optional TI IWR6843 angle radar.
Defensive deception against safety-removal attacks on open-weight models.
Evidence-backed proof of done for Claude Code, Codex, Cursor, and other AI coding agents. Run real checks, bind results to current Git state, and know what is ready for human review.
Upcoming Events and Webinars
There will be following talks
Building Presentation Slides and Videos with a Python AI Harness
Marimo - the Next Generation of Python notebooks
How Python and AI helped keep me from getting thrown out of a saloon
There will be following talks
The Self-Correcting RAG: Improving Retrieval via User Feedback Loops
AI Beyond English: Building Multi-Lingual AI Solutions
There will be following talks
The Meaning of Lift - What are the Stakeholders Actually Asking?
Vector Databases Explained: Do You Really Need One?
There will be a talk, RAG on the GO!: Build Your Chatbot with Your Own Documents.
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