I had to write some SOAP web services but did not find any good tool.

• soaplib/rpclib. Horrible (really horrible) schema. No any control on element order, meaningless wrappers and superfluous types.
• ZSI. Petrified mammoth shit.
• pyws. Suitable for simple tasks only.

So there is the DropTheSoap.

• One-to-one mapping to XSD schema.
• Simple type modeling. You have not to guess how inherit your classes. Simply write in XSD notation.
• On-the-fly WSDL generation.