On Sunday 13 June 2010, Kris Dom elucidated thus:
No, the service I connect to is based upon JBOSS and has its own internal authentication scheme.
This is really puzzeling.
Is there a way you can see the actual SOAP messages being exchanged? I could try to compare the python and IE with a webtrace
You can look at the logging messages generated by Suds (see the docs for setting that up).
If all else fails, try tcpdump? :) Logging in to that service with Firefox or Chrome with their developer extentions (Firebug for FF, built in with Chrome) may show you headers, etc.
j