No subject

get with invective of urwid.

> Also, we really should get rid of twisted.manhole, because these days 
> manhole is supposed to refer to the stuff in twisted.conch.  I'm not 
> sure if you found the latter, but from the warning you got about 
> twisted.protocols.telnet it seems like you may have only found the 
> former.

I was able to use only manhole.telnet. I wan't able to understand how to
make twisted.protocols.telnet work in the same way and was not able to fine
a demo snippet (more for completeness that else I'm still interested in
this).

On the other hand I managed to use ipython and twisted as I wanted and
everitying is working like a charm (but I still have a question that I'll
leave for next chapter).

Twisted in a thread - working setup
-----------------------------------

Following a hint in the ipython ml I started a second thread for twisted and
I'm using blockingcallFromThread to dispatch commands to the reactor:

    proto = Domotik()
    SerialPort(proto, o.opts['device'], reactor, baudrate=int(o.opts['baudrate']))

    rit = twistedutil.ReactorInThread()
    rit.setDaemon(True)
    rit.start()

    q = Quadro(proto, discover=False)
    proto.quadro = q
    q.discover_modules()

This works exactly as I wanted. I can interact with 'q' that represents a
collection of electric modules on the serial bus 


The unresolved doubt
--------------------------------

What I can't understand is why I can't put "q.discover_modules()" inside
callWhenRunning() command: if I do that it just blocks at the first
iteration of the 'for' loop.

    reactor.callWhenRunning( start_command, proto)

    def start_command(proto):
	q.discover_modules()

    class Quadro(object):

	def __init__(self, proto):
	    self.proto = proto
	    self.modules = []

	def discover_modules(self):
            """send a request to the serial bus to understand which electric
            modules are present"""

	    for x in range(10):
		blockingCallFromThread(reactor.callLater, 1 + x/5.0, self.proto.ask_status, x)


thanks

sandro
*:-)


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