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Update manhole documentation for async/await. (#8462)

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Patrick Cloke 2020-10-05 09:40:19 -04:00 committed by GitHub
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Update the directions for using the manhole with coroutines.

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docs/manhole.md
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@ -35,9 +35,12 @@ This gives a Python REPL in which `hs` gives access to the
`synapse.server.HomeServer` object - which in turn gives access to many other `synapse.server.HomeServer` object - which in turn gives access to many other
parts of the process. parts of the process.
Note that any call which returns a coroutine will need to be wrapped in `ensureDeferred`.
As a simple example, retrieving an event from the database: As a simple example, retrieving an event from the database:
``` ```pycon
>>> hs.get_datastore().get_event('$1416420717069yeQaw:matrix.org') >>> from twisted.internet import defer
>>> defer.ensureDeferred(hs.get_datastore().get_event('$1416420717069yeQaw:matrix.org'))
<Deferred at 0x7ff253fc6998 current result: <FrozenEvent event_id='$1416420717069yeQaw:matrix.org', type='m.room.create', state_key=''>> <Deferred at 0x7ff253fc6998 current result: <FrozenEvent event_id='$1416420717069yeQaw:matrix.org', type='m.room.create', state_key=''>>
``` ```