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Update doc about minimal Python version for async support

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laggardkernel 2021-05-12 05:44:00 +08:00 • committed by Phil Jones
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docs/async-await.rst
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@ -7,7 +7,8 @@ Using ``async`` and ``await``
Routes, error handlers, before request, after request, and teardown
functions can all be coroutine functions if Flask is installed with the
``async`` extra (``pip install flask[async]``). This allows views to be
``async`` extra (``pip install flask[async]``). It requires Python 3.7+
where ``contextvars.ContextVar`` is available. This allows views to be
defined with ``async def`` and use ``await``.
.. code-block:: python