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Clarify asyncio and gevent incompatibility in docs (#5817) #5824

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Clarify asyncio and gevent incompatibility in docs (#5817) #5824

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11 changes: 11 additions & 0 deletions docs/async-await.rst
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Expand Up @@ -29,6 +29,17 @@ well as all the HTTP method handlers in views that inherit from the
runtime, greenlet>=1.0 is required. When using PyPy, PyPy>=7.3.7 is
required.

**Compatibility with Gevent**

Flask's asynchronous support relies on the ``asgiref`` library, which is
not compatible with ``gevent``. When using ``gevent`` or ``eventlet`` to
serve a Flask application or patch the runtime, asynchronous operations
may not function as expected.

If you require asynchronous support, consider using an ASGI server like
``uvicorn`` or ``hypercorn``, which are designed to work seamlessly with
Flask's async capabilities.


Performance
-----------
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