Using rpclib with wsdl containing namespaced messages

badcalc.wsdl

<?xml version="1.0" encoding="UTF-8"?>
<wsdl:definitions 
	xmlns="http://schemas.xmlsoap.org/wsdl/" 
	xmlns:calc="http://www.example.com/wsdl/calc/v1.0"
	xmlns:wsdl="http://schemas.xmlsoap.org/wsdl/" 
	xmlns:wsdlsoap="http://schemas.xmlsoap.org/wsdl/soap/"
	xmlns:xsd="http://www.w3.org/2001/XMLSchema" 
	targetNamespace="http://www.example.com/wsdl/calc/v1.0"
	name="CalcWebService">
    <wsdl:types>
	    <xsd:schema 
            targetNamespace="http://www.example.com/wsdl/calc/v1.0"
            xmlns:calc="http://www.example.com/wsdl/calc/v1.0" 
            xmlns:xsd="http://www.w3.org/2001/XMLSchema"
            elementFormDefault="qualified">
			
            <xsd:simpleType name="FuncType">
                <xsd:restriction base="xsd:NMTOKEN">
                    <xsd:enumeration value="ADD"/>
                    <xsd:enumeration value="SUB"/>
                    <xsd:enumeration value="MUL"/>
                </xsd:restriction>
            </xsd:simpleType>

            <xsd:complexType name="calcRequestParameters">
                <xsd:sequence>
                    <xsd:element name="calcFuncId" type="calc:FuncType" minOccurs="1" maxOccurs="1"/>
                    <xsd:element name="calcRequest" type="xsd:string" minOccurs="1" maxOccurs="1"/>
                </xsd:sequence>
            </xsd:complexType>
			
            <xsd:element name="calcRequest" type="calc:calcRequestParameters"/>
	        <xsd:element name="calcResponse" type="xsd:string"/>
        </xsd:schema>
    </wsdl:types>
  
    <wsdl:message name="calcResult">
        <wsdl:part name="response" element="calc:calcResponse"/>
    </wsdl:message>

    <wsdl:message name="calcMessage">
        <wsdl:part name="request" element="calc:calcRequest"/>
    </wsdl:message>
            
    <wsdl:portType name="calcMessagePortType">
        <wsdl:operation name="SendCalcMessage">
            <wsdl:input message="calc:calcMessage"/>
            <wsdl:output message="calc:calcResult"/>
        </wsdl:operation>
    </wsdl:portType>
        
    <wsdl:binding name="CalcService" type="calc:calcMessagePortType">
        <wsdlsoap:binding style="document" transport="http://schemas.xmlsoap.org/soap/http"/>
        <wsdl:operation name="SendCalcMessage">
            <wsdlsoap:operation soapAction="http://calc.example.com/SendCalcMessage" style="document"/>
            <wsdl:input>
                <wsdlsoap:body use="literal"/>
            </wsdl:input>
            <wsdl:output>
                <wsdlsoap:body use="literal"/>
            </wsdl:output>
        </wsdl:operation>
    </wsdl:binding>
        
    <wsdl:service name="CalcAPIService">
        <wsdl:port name="CalcAPI" binding="calc:CalcService">
            <wsdlsoap:address location="http://www.example.com/soap-service/CalcService"/>
        </wsdl:port>
    </wsdl:service>
</wsdl:definitions>

calcclient.py

import os
from os import path
from suds.client import Client

winslash = '' if os.getcwd().startswith('/') else '/'
wsdl_uri = 'file://' + winslash + path.join(os.getcwd(), 'badcalc.wsdl')

client = Client(wsdl_uri, location='http://localhost:8082')
print 'Result : ', client.service.SendCalcMessage('ADD', '1 2')

'''
ERROR: I get following exception

Traceback (most recent call last):
  File "calcclient.py", line 9, in <module>
    print 'Result : ', client.service.SendCalcMessage('ADD', '1 2')
  File "C:\Python27\lib\site-packages\suds\client.py", line 542, in __call__
    return client.invoke(args, kwargs)
  File "C:\Python27\lib\site-packages\suds\client.py", line 602, in invoke
    result = self.send(soapenv)
  File "C:\Python27\lib\site-packages\suds\client.py", line 649, in send
    result = self.failed(binding, e)
  File "C:\Python27\lib\site-packages\suds\client.py", line 702, in failed
    r, p = binding.get_fault(reply)
  File "C:\Python27\lib\site-packages\suds\bindings\binding.py", line 265, in get_fault
    raise WebFault(p, faultroot)
suds.WebFault: Server raised fault: 'Method '{http://www.example.com/wsdl/calc/v1.0}calcRequest' not found.'
'''

calcserver.py

from rpclib.decorator import srpc
from rpclib.service import ServiceBase
from rpclib.model.binary import ByteArray
from rpclib.model.enum import Enum
from rpclib.model.primitive import String, Integer
from rpclib.model.complex import Array, ComplexModel

CALC_WSDL_NS = 'http://www.example.com/wsdl/calc/v1.0'

FuncType = Enum('ADD', 'SUB', 'MUL', type_name="FuncType")
FuncType.__namespace__ = CALC_WSDL_NS

class CalcService(ServiceBase):
    @srpc(FuncType, String, _returns=String, _in_message_name="calcRequest",  _body_style='bare',  _soap_body_style='document')
    def SendCalcMessage(calcFuncId, calcRequest):
        num1, num2 = calcRequest.split()
        if calcFuncId is FuncType.ADD:
            return unicode(int(num1) + int(num2))
        elif calcFuncId == 'SUB':
            return unicode(int(num1) - int(num2))
        elif calcFuncId == 'MUL':
            return unicode(int(num1) * int(num2))

if __name__ == '__main__':
    import logging
    from wsgiref.simple_server import make_server
    from rpclib.util.simple import wsgi_soap11_application

    logging.basicConfig(level=logging.DEBUG)
    logging.getLogger('rpclib.protocol.xml').setLevel(logging.DEBUG)

    wsgi_app = wsgi_soap11_application([CalcService], CALC_WSDL_NS)
    server = make_server('127.0.0.1', 8082, wsgi_app)

    print "WSDL is at: http://localhost:8082/?wsdl"
    server.serve_forever()