PythonHub

Heartbeats in Distributed Systems Heartbeats in distributed systems are periodic signals sent by nodes to indicate they are alive and functioning, enabling monitoring systems to detect failures or unresponsiveness promptly. These heartbeats help maintain system health, support fault detection, load balancing, and consistency by allowing systems to respond timely to node failures or network partitions. https://arpitbhayani.me/blogs/heartbeats-in-distributed-systems

Learning Python Feels Easy. Until It Isn’t. The video explains the real learning curve of Python from beginner basics to writing professional, testable code. It covers mastering Python fundamentals, writing Pythonic code, understanding types and abstractions, designing better software, and incorporating testing for maintainable and scalable Python development. https://www.youtube.com/watch?v=8_Pf4y5yqCE

RLinf RLinf is a flexible and scalable open-source infrastructure designed for post-training foundation models (LLMs, VLMs, VLAs) via reinforcement learning. https://github.com/RLinf/RLinf

Nano Banana can be prompt engineered for extremely nuanced AI image generation The article highlights Nano Banana’s capability for exceptionally nuanced AI image generation, leveraging a large 32,768-token context window to enable highly detailed and controlled prompts. These features allow for precise adjustments and creative experimentation, pushing the boundaries of prompt engineering in AI art. https://minimaxir.com/2025/11/nano-banana-prompts

Lazy Skills: A Token-Efficient Approach to Dynamic Agent Capabilities The article presents a method for AI agents to progressively load capabilities on-demand through a three-level system—metadata discovery, detailed documentation loading, and executable tool registration. This approach significantly reduces token usage in large language model contexts, enhances extensibility, and improves efficiency by isolating skills in subprocesses and using keyword-ba... https://boliv.substack.com/p/lazy-skills-a-token-efficient-approach

portable_python Self-contained Python distribution for Linux. https://github.com/qznc/portable_python

GNN From Scratch The article provides an introduction to Graph Neural Networks (GNNs), explaining how graphs are represented for machine learning and introducing the mathematical intuition behind GNNs. It covers key concepts such as nodes, edges, and the message-passing mechanism, helping readers understand how GNNs learn from graph-structured data. https://cultured-avenue-f13.notion.site/GNN-From-Scratch-2a3dfe9550dd80ac87deee4fe6cd0696

Hachi: An (Image) Search engine The Hachi project is an end-to-end, fast, self-hosted semantic and metadata search engine designed to enable comprehensive search across all types of media by extracting independent information from distributed personal data. It prioritizes minimal external dependencies, hackability, and the integration of machine learning models to fuse deterministic and semantic attributes, aiming for ... https://eagledot.xyz/hachi.md.html

How to use UUIDv7 in Python, Django and PostgreSQL Learn how to use UUIDv7 today with stable releases of Python 3.14, Django 5.2 and PostgreSQL 18. A step by step guide showing how to generate UUIDv7 in Python, store them in Django models, use PostgreSQL native functions and build time ordered primary keys without writing SQL. https://www.paulox.net/2025/11/14/how-to-use-uuidv7-in-python-django-and-postgresql/

Image Search App with ColPali and FastAPI https://cocoindex.io/docs/examples/image_search

The Qtile Window Manager: A Python-Powered Tiling Experience https://tech.stonecharioteer.com/posts/2025/qtile-window-manager/

Python Hub Weekly Digest for 2025-11-23 https://pythonhub.dev/digest/2025-11-23/

7 vulnerabilities in django-allauth enabling account impersonation and token abuse The django-allauth package had seven vulnerabilities, including four major ones that enabled account impersonation by exploiting mutable or non-unique identifiers from Okta and NetIQ, token refresh for deactivated users, and unverified email acceptance from Notion. These flaws could allow attackers to impersonate users and abuse tokens, but all have been fixed in version 65.13.0. https://zeropath.com/blog/django-allauth-account-takeover-vulnerabilities

Memori An open-source SQL-Native memory engine for AI. https://github.com/GibsonAI/Memori

PyBay 2025 Videos The talk videos from PyBay 2025 are now available. https://www.youtube.com/playlist?list=PL85KuAjbN_gseSuHZTUCgNAHLeKuMDBxI

How often does Python allocate? The article explores how frequently Python allocates memory, focusing on the integer type implementation. It finds that CPython allocates new memory objects often but mitigates overhead by reusing objects from a freelist and employing a specialized pool allocator; nonetheless, Python's integer handling still incurs considerably more allocation overhead than the single CPU ADD instruction... https://zackoverflow.dev/writing/how-often-does-python-allocate

Celtic Code: Drawing Knots with Python https://2earth.github.io/website/20250202.html

httpmorph httpmorph is a drop-in replacement for Python's requests library that uses a custom C implementation with BoringSSL instead of Python's standard HTTP stack. https://github.com/arman-bd/httpmorph

Decompression is up to 30% faster in CPython 3.15 CPython 3.15 introduces significant improvements in decompression speed: Zstandard (zstd) decompression is now up to 25–30% faster, and zlib decompression is 10–15% faster for data larger than 1 MiB. These gains result from optimizations in the handling of output buffers during decompression. https://emmatyping.dev/decompression-is-up-to-30-faster-in-cpython-315.html

Build better software to build software better The article from Slack Engineering describes how Slack improved their build pipeline by applying classic software engineering principles combined with high-performance build tooling (Bazel). They restructured their build system by separating concerns, modeling builds as graphs of well-defined work units, and leveraging caching and parallelization, which resulted in builds running up to s... https://slack.engineering/build-better-software-to-build-software-better