#413 python-build-standalone finds a home

Python Bytes

Topics covered in this episode:

• jiter
• A new home for python-build-standalone
• moka-py
• uv: An In-Depth Guide
• Extras
• Joke

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Michael #1: jiter

• Fast iterable JSON parser.
• About to be the backend for Pydantic and Logfire.
• Currently powers OpenAI / ChatGPT (along with Pydantic itself), at least their Python library, maybe more.
• jiter has three interfaces:
  • JsonValue an enum representing JSON data
  • Jiter an iterator over JSON data
  • PythonParse which parses a JSON string into a Python object
• jiter-python - This is a standalone version of the JSON parser used in pydantic-core. The recommendation is to only use this package directly if you do not use pydantic

Brian #2: A new home for python-build-standalone

• Charlie Marsh
• See also Transferring Python Build Standalone Stewardship to Astral from Gregory Szorc
• python-build-standalone is the project that has prebuilt binaries for different architectures.
• used by uv python install 3.12 and uv venv .venv --python 3.12 and uv sync
• This is good stability news for everyone.
• Interesting discussion of prebuilt Python from Charlie

Michael #3: moka-py

• A high performance caching library for Python written in Rust
• moka-py is a Python binding for the highly efficient Moka caching library written in Rust.
• This library allows you to leverage the power of Moka's high-performance, feature-rich cache in your Python projects.
• Features
  • Synchronous Cache: Supports thread-safe, in-memory caching for Python applications.
  • TTL Support: Automatically evicts entries after a configurable time-to-live (TTL).
  • TTI Support: Automatically evicts entries after a configurable time-to-idle (TTI).
  • Size-based Eviction: Automatically removes items when the cache exceeds its size limit using the TinyLFU policy.
  • Concurrency: Optimized for high-performance, concurrent access in multi-threaded environments.

Brian #4: uv: An In-Depth Guide

• On SaaS Pegasus blog, so presumably by Cory Zue
• Good intro to uv
• Also a nice list of everyday commands
  • Install python: uv python install 3.12
    • I don’t really use this anymore, as uv venv .venv --python 3.12 or uv sync install if necessary
  • create a virtual env: uv venv .venv --python 3.12
  • install stuff: uv pip install django
  • add project dependencies
  • build pinned dependencies
• Also discussion about adopting the new workflow

Extras

Brian:

• PydanticAI - not sure why I didn’t see that coming
• In the “good to know” and “commentary on society” area:
  • Anti-Toxicity Features on Bluesky
  • The WIRED Guide to Protecting Yourself From Government Surveillance

Michael:

• Go sponsor a bunch of projects on GitHub
• Registration is open for PyCon

Joke: Inf