Introspecting a WSDL with Python Zeep

Based on the answer from jordanm, I used the following to get all of the data I needed on the available methods

from zeep import Clientfrom pprint import pprintwsdl = 'http://webservices.amazon.com/AWSECommerceService/AWSECommerceService.wsdl'client = Client(wsdl)def parseElements(elements):    all_elements = {}    for name, element in elements:        all_elements[name] = {}        all_elements[name]['optional'] = element.is_optional        if hasattr(element.type, 'elements'):            all_elements[name]['type'] = parseElements(                element.type.elements)        else:            all_elements[name]['type'] = str(element.type)    return all_elementsinterface = {}for service in client.wsdl.services.values():    interface[service.name] = {}    for port in service.ports.values():        interface[service.name][port.name] = {}        operations = {}        for operation in port.binding._operations.values():            operations[operation.name] = {}            operations[operation.name]['input'] = {}            elements = operation.input.body.type.elements            operations[operation.name]['input'] = parseElements(elements)        interface[service.name][port.name]['operations'] = operationspprint(interface)

You can access parameter elements with operation.input.body.type.elements, which is a list of tuples containing element objects. These objects contain information such as the type.

(Pdb) operation.input.body.type.elements[('MarketplaceDomain', <Element(name='MarketplaceDomain', type=<zeep.xsd.types.builtins.String object at 0x7f1bd8a4b320>)>), ('AWSAccessKeyId', <Element(name='AWSAccessKeyId', type=<zeep.xsd.types.builtins.String object at 0x7f1bd8a4b320>)>), ('AssociateTag', <Element(name='AssociateTag', type=<zeep.xsd.types.builtins.String object at 0x7f1bd8a4b320>)>), ('Validate', <Element(name='Validate', type=<zeep.xsd.types.builtins.String object at 0x7f1bd8a4b320>)>), ('XMLEscaping', <Element(name='XMLEscaping', type=<zeep.xsd.types.builtins.String object at 0x7f1bd8a4b320>)>), ('Shared', <Element(name='Shared', type=<zeep.xsd.dynamic_types.BrowseNodeLookupRequest object at 0x7f1bd8177e48>)>), ('Request', <Element(name='Request', type=<zeep.xsd.dynamic_types.BrowseNodeLookupRequest object at 0x7f1bd8177e48>)>)](Pdb) operation.input.body.type.elements[0][1].name'MarketplaceDomain'(Pdb) operation.input.body.type.elements[0][1].type.name'string'(Pdb) operation.input.body.type.elements[0][1].is_optionalTrue