Why am I getting "Exception: (404, u'Not Found')" with Suds

Question

I am trying to connect to SugarCRM soap services (what's the correct terminology?) using Suds:

from suds.client import Client

url = "http://localhost/sugarcrm/soap.php?wsdl"
client = Client(url)
session = client.service.login("usr", "pwd")

But the very last line throws an exception:

ERROR:suds.client:<?xml version="1.0" encoding="UTF-8"?>
<SOAP-ENV:Envelope xmlns:ns3="http://www.w3.org/2001/XMLSchema" xmlns:SOAP-ENC="http://schemas.xmlsoap.org/soap/encoding/" xmlns:ns0="http://schemas.xmlsoap.org/soap/encoding/" xmlns:ns1="http://www.sugarcrm.com/sugarcrm" xmlns:ns2="http://schemas.xmlsoap.org/soap/envelope/" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:SOAP-ENV="http://schemas.xmlsoap.org/soap/envelope/" SOAP-ENV:encodingStyle="http://schemas.xmlsoap.org/soap/encoding/">
   <SOAP-ENV:Header/>
   <ns2:Body>
      <ns1:login>
         <user_auth xsi:type="ns1:user_auth">usr</user_auth>
         <application_name xsi:type="ns3:string">pwd</application_name>
      </ns1:login>
   </ns2:Body>
</SOAP-ENV:Envelope>
Traceback (most recent call last):
  File "python.py", line 5, in <module>
    session = client.service.login("usr", "pwd")
  File "/usr/lib/pymodules/python2.6/suds/client.py", line 542, in __call__
    return client.invoke(args, kwargs)
  File "/usr/lib/pymodules/python2.6/suds/client.py", line 602, in invoke
    result = self.send(soapenv)
  File "/usr/lib/pymodules/python2.6/suds/client.py", line 653, in send
    result = self.failed(binding, e)
  File "/usr/lib/pymodules/python2.6/suds/client.py", line 714, in failed
    raise Exception((status, reason))
Exception: (404, u'Not Found')

Answer 1

Try passing also the argument location=url to the Client constructor. Sometimes the location element in WSDLs doesn't match up with URI on the server.

client = Client(url, location=url)