[PyXMPP] raise and errors in callbacks

[test]

hello,

first of all thank you for this great component. i have a very basic noob 
question here.

i'm using the echobot.py example, and modified jsut to raise an error when 
session starts:

def session_started(self):
        JabberClient.session_started(self)
        raise TypeError

though, no error is being raised. seems that the raise statement in the 
JabberClient callbacks does not produce any results.

furthermore, the same thing is then propagated in all class instances 
eventually created under the callbacks, for instance:

def session_started(self):
        JabberClient.session_started(self)
        dr = DR()

where

class DR():
        def __init__(self):
                raise TypeError
                print "ok"

raise statement is ignored, and "ok" is not printed.

am i missing something?

thank you,

r.