Pytheus – Python Prometheus client built with multiprocessing in mind

In plain words

Pytheus is a Python Prometheus client library designed for multiprocessing environments. It provides a unified interface for collecting metrics across single and multiprocess applications, requiring only a function call to specify the backend. The library supports default and partial labels for building child instances incrementally, and includes an experimental Rust-based backend for asyncio applications. It emphasizes flexibility and comprehensive documentation.

written from the facts on this page · September 2026

From the sources

experimenting with a new prometheus client for python - Llandy3d/pytheus

In the maker’s words, at launch

Sharing this side project of mine, if you had issues while using multiprocess in python when collecting metrics this might interest you :) The library offers the same interface between single process & multi process, the only difference is doing a function call specifying which backend to use and everything will work…

• 
  HTTP/2 Python-Asyncio Web Microframework2018 · gitlab.com · ▲173
• 
  PyDoll – Async Python scraping engine with native CAPTCHA bypass2025 · github.com · ▲136

  Pydoll is a library for automating chromium-based browsers without a WebDriver, offering realistic interactions. - GitHub - autoscrape-labs/pydoll: Pydoll is a library for automating chromium-based browsers without a WebDriver, offering realistic interactions.

• 
  Oxyde – Pydantic-native async ORM with a Rust coreMar 2026 · github.com · ▲155

  Hi HN! I built Oxyde because I was tired of duplicating my models. If you use FastAPI, you know the drill. You define Pydantic models for your API, then define separate ORM models for your database, then write converters between them. SQLModel tries to fix this but it's still SQLAlchemy underneath. Tortoise gives you a nice Django-style API but its own model system. Django ORM is great but welded to the framework. I wanted something simple: your Pydantic model IS your database model. One class, full validation on input and output, native type hints, zero duplication. The query API is…

• 
  Prometeo – a Python-to-C transpiler for high-performance computing2021 · github.com · ▲166

  An experimental Python-to-C transpiler and domain specific language for embedded high-performance computing - zanellia/prometeo

• 
  Pyper – Concurrent Python Made Simple2025 · github.com · ▲156

  Hello and happy new year! We're excited to introduce the Pyper package for concurrency & parallelism in Python. Pyper is a flexible framework for concurrent / parallel data processing, following the functional paradigm. Source code can be found on [github](https://github.com/pyper-dev/pyper) Key features: Intuitive API: Easy to learn, easy to think about. Implements clean abstractions to seamlessly unify threaded, multiprocessed, and asynchronous work. Functional Paradigm: Python functions are the building blocks of data pipelines. Let's you write clean, reusable…

• 
  My latest pet project, pydroid2010 · github.com · ▲109

• 
  /dev/null▲491

  a social network for devs

  Dev tools · 4d ago · dev-null.sh

• 
  Run full iOS 16.5 firmware on Android Devices▲460

  Contribute to oosexgang/hackios-xnu-kernel development by creating an account on GitHub.

  Dev tools · 21h ago · github.com

• 
  Whiteboard (YC W26) – an open-source IDE for thoughtful software design▲423

  open-source IDE for thoughtful software design. Contribute to devdotfast/whiteboard development by creating an account on GitHub.

  Dev tools · 29d ago · github.com

• 
  Reladraw – A diagram language where you decide where to place things▲411

  Contribute to reladraw/reladraw development by creating an account on GitHub.

  Dev tools · 27d ago · github.com

• 
  OpenBot▲362

  Grok Bot alternative: free, local, open-source, multiplayer

  Dev tools · 24d ago · openbot.run

• 
  Talanoa▲346

  Hi HN, I’m a fullstack developer, and honestly, I’ve lost count of how many side projects I’ve worked on over the years. But one idea kept coming back to me: a different kind of email client. It first came to me in 2014: “What if we could handle emails more like conversations?” Every year, I’d revisit this concept in my “Build Notes.” Ten years later, no one had built exactly what I had in mind — so I finally decided to do it myself. That’s how Talanoa was born. I wanted something focused on people, not timelines. I was tired of marking messages as unread just to remember to reply later, or…

  Dev tools · 22d ago · talanoa.email

• 
  Clustr▲1,526

  The reality check for your crypto portfolio

  Commerce · 2023 · clustr.io

• 
  Workout.lol – a web app to easily create a workout routine▲993

  Hey everyone, I here is a small open-source project I've been working on lately. I'd love to hear your thoughts and improvement ideas :) GitHub: [github.com/Vincenius/workout-lol](https://github.com/Vincenius/workout-lol)

  Dev tools · 2023 · workout.lol

• HN
  Hacker News user blogroll▲937

  I saw this [0] pretty cool thread by user revskill, and wanted a quicker way to search through it, but also to keep them all in one place so I can read them at my leisure whenever I get time. Right now is like 60 lines of Ruby using Nokogiri, but I will certainly look into it further down the line and improve the list. There's a cronjob checking the thread every 12 hours but I will eventually shut that down and it will become static after that. There are some really awesome blogs in there. I really recommend going through the list, it made my day. [0] "Could you share your personal blog…

  Life & fun · 2023 · dm.hn

• 
  Lazy▲928

  One ⌘ shortcut to capture anything straight to Notion

  AI · 2023 · lazy.so

• 
  Anytype - Public Beta▲907

  Anytype is built on the open-source AnySync protocol: a local-first protocol based on CRDTs. Users of Anytype can create spaces - graph-based databases with modular UI. Each space has unique access rights. Today, Anytype's beta is in single-player mode. Multiplayer mode, which will support local-first collaboration between multiple users, will be launched in the first half of 2024. Anytype fulfils the seven ideals of local first software from here - https://www.inkandswitch.com/local-first/ , our team felt these things are important to all of us: • No spinners: your work…

  Commerce · 2023 · anytype.io

• 
  n8n 1.0▲786

  Workflow automation for technical people

  Dev tools · 2023 · n8n.io