Good day, everyone:
Continuing my effort to learn Python and Twisted, I need to create several
Telnet clients and somehow send two arguments to each and receive data from
each.
I tried the same pattern that I used with the Telnet server and created a
Factory, actually a ReconnectingClientFactory. It doesn't work. My source
and the error (no attribute 'factory') are below.
Do the "conch" protocols not support a factory? Is there an alternative
that provides a Telnet client with a lineReceived method?
What am I doing wrong? :-) I suppose I could pass arguments to
ClusterClient by overriding __init__, but that seems inelegant.
Thanks for your help.
Mark
----------
from twisted.internet.protocol import Protocol, ReconnectingClientFactory
from sys import stdout
from twisted.internet import reactor
from twisted.conch.telnet import StatefulTelnetProtocol
class ClusterClient(StatefulTelnetProtocol):
def lineReceived(self, data):
print self.factory.prompt, self.factory.call
print data
class ClusterClientFactory(ReconnectingClientFactory):
protocol = ClusterClient
def __init__(self):
self.prompt = "call:"
self.call = "kd4d"
def startedConnecting(self, connector):
print 'Started to connect.'
def buildProtocol(self, addr):
print 'Connected.'
self.resetDelay()
return ClusterClient()
def clientConnectionLost(self, connector, reason):
print 'Lost connection. Reason:', reason
ReconnectingClientFactory.clientConnectionLost(self, connector,
reason)
def clientConnectionFailed(self, connector, reason):
print 'Connection failed. Reason:', reason
ReconnectingClientFactory.clientConnectionFailed(self, connector,
reason)
if __name__ == '__main__':
factory = ClusterClientFactory()
factory.maxDelay = 120 # two minutes
print factory.prompt, factory.call
reactor.connectTCP("localhost", 8023, factory)
reactor.run()
-----------------
File "ClusterClient.py", line 11, in lineReceived
print self.factory.prompt, self.factory.call
exceptions.AttributeError: ClusterClient instance has no attribute 'factory'
Lost connection. Reason: [Failure instance: Traceback (failure with no
frames):
<type 'exceptions.AttributeError'>: ClusterClient instance has no attribute
'fa
ctory'
]
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