如何为suds webservice对象设置“text”值

Question

Suds seems to have problems parsing the following XSD:

<element name="quantity" minOccurs="1" maxOccurs="1">
    <annotation>
        <documentation>Quantity of this item that's being ordered.</documentation>
    </annotation>
    <complexType>
        <simpleContent>
            <extension base="int">
                <attribute name="unitOfMeasure" use="required">
                    <annotation>
                        <documentation>
                            Unit of measurement.

                            The attribute can have the 
                            following values: PCS - pieces
                            SEC- seconds BYT - bytes KB -
                            kilobytes
                        </documentation>
                    </annotation>
                    <simpleType>
                        <restriction base="string">
                            <enumeration value="PCS" />
                            <enumeration value="SEC" />
                            <enumeration value="BYT" />
                            <enumeration value="KB" />
                        </restriction>
                    </simpleType>
                </attribute>
            </extension>
        </simpleContent>
    </complexType>
</element>

The XML is supposed to look like:

<ns0:quantity unitOfMeasure="PCS">1</ns:quantity>

Sadly, I can only set the attribute:

>>> c.factory.create('ns0:item.quantity')
(quantity){
   _unitOfMeasure = ""
 }

with no possibility to set the "text" value of the XML node.

I've tried creating the XML literally:

element = Element('ns0:quantity')
element.setText("1")
element.set('unitOfMeasure', "PCS")

and passing that as parameter.

This looks good in the debug logging (as <ns0:quantity unitOfMeasure="PCS">1</ns0:quantity> ) but the actual request shows this value will be serialized as:

<ns0:quantity />

I'm getting lost here. How can I submit this value properly?

I'm using suds 0.4

Answer 1

Just found a temporary workaround.

The problem also occurs with suds-jurko. While the pretty-format logging in suds.client shows the XML element, the raw logging in suds.transport.http shows that the "plain" output fails to serialize the element.

By enabling client.options.prettyxml = True this issue is circumvented.