Reduce operation in pickling valueobjects doesn't work when inner xml blob of a soap envelop is copied from another envelope.

[sankalpanand]

This particular commit breaks our existing POST request. Our SOAP Envelope looks like the one attached below. What's happening is that I am using python's copy method to copy callForwardAll from an existing node. During copying, this Python's native reduction step is overridden by this reduction step in zeep.
I end up getting an error- AttributeError: 'NoneType' object has no attribute 'render'. If I figure out what the problem is, I'll be happy to submit a PR for this.

<?xml version='1.0' encoding='utf-8'?>
<soap-env:Envelope xmlns:soap-env="http://schemas.xmlsoap.org/soap/envelope/">
  <soap-env:Body>
    <ns0:updateLine xmlns:ns0="http://www.cisco.com/AXL/API/10.5">
      <uuid>{985F810A-57E2-FD59-8A31-725C33E8F0BA}</uuid>
      <callForwardAll xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:type="ns0:RCallForwardAll">
        <forwardToVoiceMail>false</forwardToVoiceMail>
        <callingSearchSpaceName uuid=""></callingSearchSpaceName>
        <secondaryCallingSearchSpaceName uuid=""></secondaryCallingSearchSpaceName>
        <destination></destination>
      </callForwardAll>
      <callForwardNoAnswer xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:type="ns0:RCallForwardNoAnswer">
        <forwardToVoiceMail>false</forwardToVoiceMail>
        <callingSearchSpaceName uuid=""></callingSearchSpaceName>
        <destination></destination>
        <duration></duration>
      </callForwardNoAnswer>
      <autoAnswer>Auto Answer Off</autoAnswer>
      <patternPrecedence>Default</patternPrecedence>
      <releaseClause>No Error</releaseClause>
      <cfaCssPolicy>Use System Default</cfaCssPolicy>
      <partyEntranceTone>Default</partyEntranceTone>
      <allowCtiControlFlag>true</allowCtiControlFlag>
      <patternUrgency>false</patternUrgency>
      <active>true</active>
    </ns0:updateLine>
  </soap-env:Body>
</soap-env:Envelope>

[sankalpanand]

The problem arises due to storing xsd_type = None (see here) for nested XML blobs. Later in the flow, it causes the exception listed above AttributeError: 'NoneType' object has no attribute 'render'.

This pull request addresses this issue should it pass all the integration tests- #430

[sankalpanand]

@mvantellingen Could you please help steering this issue? I have a pull request out but its breaking one of the test.

[sankalpanand]

@mvantellingen Any inputs on this issue?

[sankalpanand]

@mvantellingen any updates on this one?

[petrvala]

I have encountered the same issue as @sankalpanand . It seems a long time passed since the appearance of the bug and no updates so far @mvantellingen ?

[mvantellingen]

As far as I know there are no PR’s yet

[petrvala]

There is a PR here: #430 , but unfortunatelly not passing tests.

Nevertheless there is a workaround if you want to use resulting output object as input for another SOAP call - just parse the object into ordereddict
zeep.helpers.serialize_object(obj, target_cls=<class 'collections.OrderedDict'>)

a then use this OrderedDict as input for the following call.