# Python

Blazing-fast Python package and project manager in Rust

uv is an extremely fast Python package and project manager written in Rust by Astral. It replaces pip, pip-tools, pipx, poetry, pyenv, and virtualenv with a single binary that delivers 10-100x speedups. uv manages Python versions, resolves dependencies with universal lockfiles, runs scripts with inline metadata, and executes CLI tools via uvx. Over 82,000 GitHub stars and weekly releases make it the fastest-growing Python toolchain.

Official Kubernetes and Helm reference stack built on the vLLM inference engine

Official vLLM reference implementation for scaling the existing inference engine on Kubernetes with Helm, request routing, KV-cache offload, autoscaling and Prometheus/Grafana observability.

Production-grade reinforcement learning framework for LLM training

verl is an open-source reinforcement learning framework designed specifically for training and aligning large language models. Built for production use with support for distributed training across multiple GPUs and nodes, it implements RLHF, DPO, and other alignment algorithms that make LLMs follow instructions, avoid harmful outputs, and generate higher quality responses. Over 580 contributors and 20,000 GitHub stars signal strong adoption.

Official Python SDK for the xAI API

The xAI Python SDK is the official Python client for the xAI API, giving developers a direct way to build Grok-powered apps without relying on community proxies or unofficial wrappers. It supports synchronous and asynchronous Python clients for chat completions, streaming responses, function/tool calling, and multimodal workflows, making it a clean fit for backend services, agents, notebooks, and developer tools that need programmatic xAI access.