Spyne server with complex input

Question

I am trying to write a simple python server using Spyne, I have gone over the hello world examples, and now trying to do something a bit more sophisticated. Sadly, there are little to no examples for this (or at least, I couldn't find anything helpful)

I am sending the following XML to the server:

<s:Envelope xmlns:s="http://schemas.xmlsoap.org/soap/envelope/">
  <s:Body xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:xsd="http://www.w3.org/2001/XMLSchema">
    <ObjectA xmlns="urn:SNSR_STD" ProtocolVersion="Undefined" MessageType="Undefined">
      <ObjectB>
        <field1>value1</field1>
        <field2>value2</field2>
        <field3/>
        <field4/>
        <field5/>
      </ObjectB>
    </ObjectA>
  </s:Body>
</s:Envelope>

My server service looks like that: class ExampleService(ServiceBase):

@srpc(String, AnyXml, _returns=None)
def PrintObject(nothing, ObjectA):
    print ObjectA

And, trying to follow this question, I have created the following classes (although I am getting the same results without them):

namespace = 'http://www.w3.org/2001/XMLSchema-instance'


class ObjectB(ComplexModel):
    __namespace__ = namespace
    field1 = XmlAttribute(Unicode)
    field2 = XmlAttribute(Unicode)
    field3 = XmlAttribute(Unicode)
    field4 = XmlAttribute(Unicode)
    field5 = XmlAttribute(Unicode)


class ObjectA(ComplexModel):
    __namespace__ = namespace
    ObjectB = ObjectB

Unfortunately, I am getting a weird object which prints this: <Element {my_application_tns}field1 at 0x431bee0> and while debugging I can't seem to find any children (or whatever I need to go through all of the values). I do have value1 under the text field.

I tried to make the function get more AnyXml parameters, hoping I could read all of them - to no avail. I also tried other values instead of AnyXml, such as XmlData and XmlAttribute, but it didn't work.

Using XmlAttribute I got an AttributeError: type object 'XmlAttribute' has no attribute 'attribute_of' from spyne\model\complex.py, line 605, in __init__ a_of = v.attribute_of. Using XmlData I got an AttributeError: type object 'XmlData' has no attribute 'type' from spyne\model\complex.py, line 119, in resolve_namespace cls.type.resolve_namespace(cls.type, default_ns, tags).

Any help would be highly appreciated, thanks :)