I have the same problem, suds 0.3.4. has problems generating object from the attached wsdl.
Suds 0.2.1 had no problems with this wsdl using the ServiceProxy()
Now i need http authentication so migrated to 0.3.4 ending up with this problem.
client.factory.create('ns1:Assessment')
Traceback (most recent call last):
File "<interactive input>", line 1, in <module>
File "C:\Python25\lib\site-packages\suds-0.3.4-py2.5.egg\suds\client.py", line 206, in create
raise BuildError("create '%s' failed" % name)
BuildError:
An error occured while building a instance of (create 'ns1:Assessment' failed). As a result
the object you requested could not be constructed. It is recommended
that you construct the type manually uisng a Suds object.
Please notify the project mantainer of this error.
wsdl