AttributeError: 'NoneType' object has no attribute 'getData'

[anildewani]

Hello, i'm unable to run the sample app code provided from the wiki
Following is the error i get immediately after i run the python script.

No handlers could be found for logger "yowsup.stacks.yowstack"
Traceback (most recent call last):
File "run.py", line 31, in
stack.loop() #this is the program mainloop
File "/Library/Python/2.7/site-packages/yowsup/stacks/yowstack.py", line 170, in loop
asyncore.loop(_args, *_kwargs)
File "/System/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/asyncore.py", line 216, in loop
poll_fun(timeout, map)
File "/System/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/asyncore.py", line 156, in poll
read(obj)
File "/System/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/asyncore.py", line 87, in read
obj.handle_error()
File "/System/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/asyncore.py", line 83, in read
obj.handle_read_event()
File "/System/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/asyncore.py", line 449, in handle_read_event
self.handle_read()
File "/Library/Python/2.7/site-packages/yowsup/layers/network/layer.py", line 48, in handle_read
self.receive(data)
File "/Library/Python/2.7/site-packages/yowsup/layers/network/layer.py", line 55, in receive
self.toUpper(data)
File "/Library/Python/2.7/site-packages/yowsup/layers/init.py", line 55, in toUpper
self.upper.receive(data)
File "/Library/Python/2.7/site-packages/yowsup/layers/stanzaregulator/layer.py", line 28, in receive
self.processReceived()
File "/Library/Python/2.7/site-packages/yowsup/layers/stanzaregulator/layer.py", line 48, in processReceived
self.toUpper(oneMessageData)
File "/Library/Python/2.7/site-packages/yowsup/layers/__init.py", line 55, in toUpper
self.upper.receive(data)
File "/Library/Python/2.7/site-packages/yowsup/layers/auth/layer_crypt.py", line 63, in receive
self.toUpper(payload)
File "/Library/Python/2.7/site-packages/yowsup/layers/__init.py", line 55, in toUpper
self.upper.receive(data)
File "/Library/Python/2.7/site-packages/yowsup/layers/coder/layer.py", line 35, in receive
self.toUpper(node)
File "/Library/Python/2.7/site-packages/yowsup/layers/__init.py", line 55, in toUpper
self.upper.receive(data)
File "/Library/Python/2.7/site-packages/yowsup/layers/logger/layer.py", line 14, in receive
self.toUpper(data)
File "/Library/Python/2.7/site-packages/yowsup/layers/__init.py", line 55, in toUpper
self.upper.receive(data)
File "/Library/Python/2.7/site-packages/yowsup/layers/__init.py", line 160, in receive
s.receive(data)
File "/Library/Python/2.7/site-packages/yowsup/layers/init.py", line 101, in receive
recv(node)
File "/Library/Python/2.7/site-packages/yowsup/layers/protocol_messages/layer.py", line 20, in recvMessageStanza
entity = TextMessageProtocolEntity.fromProtocolTreeNode(node)
File "/Library/Python/2.7/site-packages/yowsup/layers/protocol_messages/protocolentities/message_text.py", line 38, in fromProtocolTreeNode
entity.setBody(node.getChild("body").getData())
AttributeError: 'NoneType' object has no attribute 'getData'

[bmutinda]

It mostly happens when the message is encrypted.

import the YowAxolotlLayer like this

from yowsup.layers.axolotl import YowAxolotlLayer

Then Add YowAxolotlLayer in your layers stack like this before you broadcast a connect event.

layers = (
        EchoLayer,
        (YowAuthenticationProtocolLayer, YowMessagesProtocolLayer, YowReceiptProtocolLayer, YowAckProtocolLayer),
        YowAxolotlLayer,
    ) + YOWSUP_CORE_LAYERS

[tgalal]

@mutindaz thanks!

[get2abhi]

Problem solved. Thanks