[IPython-dev] ipython with twisted reactor

Min RK benjaminrk@gmail....
Fri Mar 1 12:16:10 CST 2013


I don't know what the waker function would be, but the event loop IPython uses is tornado,
So that's what twisted needs to work with.

-MinRK

On Mar 1, 2013, at 8:37, tcb <thecolourblue+m@gmail.com> wrote:

> Hi,
> 
> I am trying to use the ipython notebook with some example code which sets up a websocket server (using autobahn python http://autobahn.ws/python/tutorials/echo ).
> 
> The problem is that I need to call twisted's reactor.run() method, but this blocks all input, and I need to interact with the objects to send/receive messages. I haven't been able to get this to work in the notebook yet. I assume its a problem interacting with the tornado eventloop in ipython- but it could be something else (the examples work fine outside of ipython).
> 
> Rather than calling reactor.run()- I've tried putting it into a thread:
> 
> threading.Thread(target=reactor.run, kwargs={'installSignalHandlers':False}).start()
> 
> but that doesn't work either- it doesn't ever run.
> 
> The threadedselector doesn't seem to run either (putting this at the top of my script):
> 
> from twisted.internet import _threadedselect
> reactor = _threadedselect.install()
> 
> There is a possibility to interleave the twisted eventloop with other event loops:
> 
> from twisted.internet import reactor
> 
> reactor.interleave(foreignEventLoopWakerFunction)
> 
> but I have no idea which ipython function would serve as a 'waker' function.
> 
> Has anyone managed to do this already in the notebook?
> 
> -thanks
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