Python - Parsear respuesta XML en Python

import BwksAPIOperations

def setup():

    # config

    xsp = "broadsoftsandboxxsp.cisco.com"

    group_name = "mm-Grp1"

    provisioner = "mm-Grp1"

    provisioner_passwd = "cisco321"

    enter_id = "DevNet"

    domain = "broadsoftlab.com"

    # init oci_session object

    OCI_Session = BwksAPIOperations.BwksAPIOperations(

        "http://{0}".format(xsp), username=provisioner, password=provisioner_passwd, domain=domain)

    # get next available DN in the group

    resp = OCI_Session.GroupDnGetAvailableListRequest(enter_id, group_name)

    print(resp)

if __name__ == '__main__':

    setup()

<?xml version='1.0' encoding='UTF-8'?>

<soapenv:Envelope

    xmlns:soapenv="http://schemas.xmlsoap.org/soap/envelope/">

    <soapenv:Body>

        <processOCIMessageResponse

            xmlns="urn:com:broadsoft:webservice"

            xmlns:ns="urn:com:broadsoft:webservice">

            <ns1:processOCIMessageReturn

                xmlns:ns1="urn:com:broadsoft:webservice">

                <BroadsoftDocument

                    xmlns="C"

                    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" protocol="OCI">

                    <sessionId

                        xmlns="">1607030670068</sessionId>

                    <command xmlns="" xmlns:c="C" echo="" type="Error" xsi:type="c:ErrorResponse">

                        <summary>[Error 5404] Unauthorized transaction.</summary>

                        <summaryEnglish>[Error 5404] Unauthorized transaction.</summaryEnglish>

                    </command>

                </BroadsoftDocument>

            </ns1:processOCIMessageReturn>

        </processOCIMessageResponse>

    </soapenv:Body>

</soapenv:Envelope>