parsing xml coming from a socket

Hi to all, and since this is my first post, congratulations for the perfect
framework.
i have the following code

class SimpleServer(LineReceiver):

    def connectionMade(self):
        print 'Connection from: ', self.transport.client

    def connectionLost(self, reason):
        print self.transport.client, 'Disconnected'

    def dataReceived(self, line):
        """Here the XML Parser"""

        p = xml.parsers.expat.ParserCreate()

        p.StartElementHandler = start_element
        p.EndElementHandler = end_element
        p.CharacterDataHandler = char_data
        p.Parse(line, 1)

I got the following error
--- <exception caught here> ---
  File "/usr/lib/python2.6/site-packages/Twisted-10.0.0-py2.6-linux-
x86_64.egg/twisted/internet/selectreactor.py", line 146, in
_doReadOrWrite
    why = getattr(selectable, method)()
  File "/usr/lib/python2.6/site-packages/Twisted-10.0.0-py2.6-linux-
x86_64.egg/twisted/internet/tcp.py", line 460, in doRead
    return self.protocol.dataReceived(data)
  File "stdiodemo.py", line 419, in dataReceived
    p.Parse(line, 1)
xml.parsers.expat.ExpatError: syntax error: line 1, column 0

The XML Message is coming in the form of:

POST /test/pcp/Listener HTTP/1.1
user-agent:hjahs
Host:127.0.0.1
Content-Length: 547

<pttv_control_message version="1.0-M4-SNAPSHOT" build="599"
xmlns="http://1270.0.01/pttv<http://www.google.com/url?sa=D&q=http://1270.0.01/pttv&usg=AFQjCNEPqmRku5kV0nsb3RICWIxQ8vOV9A>">

  <cmdReply>
    <code>200</code>
    <message>OK, found 5 session entries</message>
    <sessionList>
      <session>
        <id>06d4d59bfdfe10139dd874</id>
        <subscriberId>82</subscriberId>
        <deviceClass>and</deviceClass>
      </session>
    </sessionList>
  </cmdReply>
</pttv_control_message>
Please give me some hints.
How to parse the incoming XML and how to ommit the headers from the
beginning of the message?

Thanks in advance

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