New subject: [Twisted-Python] attribute error when I am trying to make one factory to send data to another

28 Apr 2015

      I am working on this messaging app and I would like to pass data from one
factory to another. I have been referencing to other answers provided in
other similar questions by trying to add a variable storing the data from
one factory then initiate another factory and write the data to it.
Unfortunately there is an error when i call the other class, and I cannot
figure out why. Is there anything I can do to fix it? I have been stuck in
here for quite a while

this is the error:

 receivermessage = self.factory.app.handle_message2(data)
 exceptions.AttributeError: MultiEcho instance has no attribute 'factory'

Here is the code:

import kivyfrom kivy.app import Appfrom kivy.uix.label import
Labelfrom kivy.uix.scatter import Scatterfrom kivy.uix.boxlayout
import BoxLayoutfrom kivy.uix.scrollview import ScrollViewfrom
kivy.uix.button import Buttonfrom kivy.graphics.vertex_instructions
import Rectanglefrom kivy.graphics.context_instructions import
Colorfrom kivy.graphics.instructions import Instructionfrom kivy.base
import runTouchAppfrom kivy.lang import Builderimport socketfrom
kivy.core.window import Windowimport pygameimport randomfrom
kivy.support import install_twisted_reactor

install_twisted_reactor()from twisted.internet import reactor, protocol
Window.size = (550, 400)
# monitoring wordlistwith open("wordlist.txt") as word_file:
    wordlist = list(word.strip().lower() for word in word_file)
# protocols for senderclass EchoProtocol(protocol.Protocol):
    """This is just about the simplest possible protocol"""

    def dataReceived(self, data):
        "As soon as any data is received, write it back."
        sendermessage = self.factory.app.handle_message(data)
        if sendermessage:
            self.transport.write(data)

            #this line here is the trouble maker that caused the error

MultiEcho().dataReceived(sendermessage) class EchoFactory(protocol.Factory):
protocol = EchoProtocol def __init__(self, app): self.app = app # protocols
for receiver class MultiEcho(protocol.Protocol): def connectionMade(self):
self.factory.echoers.append(self) def dataReceived(self, data):
receivermessage = self.factory.app.handle_message2(data) if receivermessage:
self.transport.write(data)

            #this line here is the trouble maker that caused the error
            EchoProtocol().dataReceived(receivermessage)

class MultiEchoFactory(protocol.Factory):
    protocol = MultiEcho

    def __init__(self, app):
        self.echoers = []
        self.app = app

class ServerApp(App):
    def build(self):
        self.layout = BoxLayout(orientation='vertical', spacing=10)

        self.label = Button(text='Censoring process begin\nBeware of
keyword "umbrella"\n ', color=[1.0, 1.0, 1.0, 1.0])
        self.label.color = [0.9, 0.2, 0.2, 1.0]

        self.upperscroll = Button(pos_hint={'x': 0, 'center_y': .5},
size_hint=(None, None))

        self.scatter = Scatter()

        self.displaybox = Label()
        self.displaybox.color = [0.4, 0.9, 0.4, 1.0]

        reactor.listenTCP(8000, EchoFactory(self))  # for sender
        reactor.listenTCP(8001, MultiEchoFactory(self))  # for receiver

        self.layout.add_widget(self.label)
        self.layout.add_widget(self.scatter)

        self.scatter.add_widget(self.displaybox)

        return self.layout

    def handle_message(self, msg):

        if any(word in msg.lower() for word in wordlist):

            self.displaybox.color = [0.9, 0.4, 0.4, 1.0]
            self.displaybox.text = "content blocked"
            self.label.text += "Alert! Sender posts %s \n" % msg

        else:
            self.label.text += "Safe - sender posts %s \n" % msg
            self.displaybox.color = [0.4, 0.9, 0.4, 1.0]
            self.displaybox.text = "%s" % msg

        msg = msg

        return msg

    def handle_message2(self, msg):

        if any(word in msg.lower() for word in wordlist):
            self.label.color = [0.8, 0.8, 0.5, 1.0]
            self.label.text += "Alert! Receiver got %s \n" % msg
        else:
            self.label.color = [0.2, 0.2, 1.0, 1.0]
            self.label.text += "Safe - receiver sends %s \n" % msg

        msg = msg

        return msg

if __name__ == '__main__':
    ServerApp().run()

[Twisted-Python] attribute error when I am trying to make one factory to send data to another

Jessica Tsui

Louis D. Burr

Jessica Tsui

Pantelis Theodosiou

Pantelis Theodosiou

Jessica Tsui

Pantelis Theodosiou

Jessica Tsui

Glyph Lefkowitz

Jessica Tsui

tags

participants (4)