- update to 3.7.1:
* Fixed sending large buffers via UNIX stream sockets on
asyncio
* Fixed several minor documentation issues (broken links to
classes, missing classes or attributes)
* Dropped support for Python 3.6
* Improved type annotations:
* Several functions and methods that were previously annotated
as accepting ``Coroutine[Any, Any, Any]`` as the return type
of the callable have been amended to accept ``Awaitable[Any]``
instead, to allow a slightly broader set of coroutine-like
inputs, like ``async_generator_asend`` objects returned from
the ``asend()`` method of async generators, and to match
the ``trio`` annotations:
* ``anyio.run()``
* ``anyio.from_thread.run()``
* ``TaskGroup.start_soon()``
* ``TaskGroup.start()``
* ``BlockingPortal.call()``
* ``BlockingPortal.start_task_soon()``
* ``BlockingPortal.start_task()``
* Changed ``TLSAttribute.shared_ciphers`` to match the
documented semantics of ``SSLSocket.shared_ciphers``
of always returning ``None`` for client-side streams
* Fixed ``CapacityLimiter`` on the asyncio backend to order
waiting tasks in the FIFO order (instead of LIFO)
* Fixed ``CancelScope.cancel()`` not working on asyncio if
called before entering the scope
* Fixed ``open_signal_receiver()`` inconsistently yielding
integers instead of ``signal.Signals`` instances on the