[Twisted-Python] cleanup at reactor.stop

[Matt Goodall]

Henning.Ramm at mediapro-gmbh.de wrote:

>This is probably a stupid question, but I'm stuck...
>
>I need to clean up some objects if (that is, before) reactor.stop is called.
>Is there something like reactor.runAtShutdown() or how should I do this?
>
You can hook into the reactor by registering a system event callback. 
See  twisted.internet.interfaces.IReactorCore's addSystemEventTrigger, 
removeSystemEventTrigger and fireSystemEvent.

You may need to grep the Twisted code to find out all the events that 
are actually fired but the one you want is "shutdown".

- Matt

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