uvicorn
A lightweight ASGI web server implementation for Python, supporting HTTP/1.1 and WebSockets.
What is uvicorn?
Uvicorn is an ASGI web server implementation for Python that provides a minimal low-level interface for async frameworks. It solves the problem of Python lacking a common server/application interface for asynchronous web applications, supporting HTTP/1.1 and WebSockets to enable modern web features.
Python developers building asynchronous web applications with frameworks like FastAPI, Starlette, or Django Channels who need a lightweight, high-performance ASGI-compliant server.
Developers choose Uvicorn for its minimal design, excellent performance with optional Cython-based optimizations, and full compliance with the ASGI specification, ensuring interoperability across async Python frameworks.
Overview
An ASGI web server, for Python. 🦄
Use Cases
Best For
- Serving FastAPI or Starlette applications in production
- Developing real-time applications with WebSocket support
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