Uvicorn

Try it in 3 steps

1. 1

   Install Uvicorn 0.54.0

   Pin the reviewed release with the standard extra documented in the README. Python 3.10 or newer is required.

   python -m pip install "uvicorn[standard]==0.54.0"Copy
2. 2

   Create a minimal ASGI application

   Save the minimal ASGI application from the official README Quickstart as example.py.

   cat > example.py <<'PY' async def app(scope, receive, send): assert scope['type'] == 'http' await send({'type': 'http.response.start', 'status': 200, 'headers': [(b'content-type', b'text/plain')]}) await send({'type': 'http.response.body', 'body': b'Hello, world!'}) PYCopy
3. 3

   Serve it with Uvicorn

   Start the server, then open http://127.0.0.1:8000/ from another terminal or browser and confirm Hello, world!.

   uvicorn example:appCopy

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• Python

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