allow more operations to work on detached streams (closes #23093)

Patch by Martin Panter.

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branch : 3.4
extra : amend_source : 1e7da2582e7c084d91a1229b1698f39b07bc708c
asyncio doc: Fix doc of get and put methods of Queue

--HG--
branch : 3.4
asyncio doc: update also Queue docstrings

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branch : 3.4