AISMarking Structure Not Implemented

I am working on Parsing TAXII messages with the STIX Package (I’ve tried 1.1.1.6 and 1.1.1.7) and I am receiving the following exception:

NotImplementedError: Marking structure type not implemented AISMarkingStructure

I can confirm that the AISMarkingStructure is in the etensions/marking/ais.py file:

$ egrep -r -nw "AIS:AISMarkingStructure" lib/
lib/python2.7/site-packages/stix/test/extensions/marking/ais.py:18:        'xsi:type': 'AIS:AISMarkingStructure'
lib/python2.7/site-packages/stix/test/extensions/marking/ais.py:31:        'xsi:type': 'AIS:AISMarkingStructure'
lib/python2.7/site-packages/stix/extensions/marking/ais.py:304:    _XSI_TYPE = "AIS:AISMarkingStructure"

I have cleared the pip cache and recreated my virtualenv thinking it may have been a cacheing error.

Here’s the Python Code that’s creating the document:

...
from stix.core import STIXPackage
#Using XML dump from test TAXII Message. Below command created the testAIS.taxii file
#print taxii_message.content_blocks[0].content
stix_package = STIXPackage.from_xml('/tmp/testAIS.taxii')

And the exception:

File "local/lib/python2.7/site-packages/stix/bindings/data_marking.py", line 352, in buildChildren
    raise NotImplementedError('Marking structure type not implemented ' + typeinfo.typename)
NotImplementedError: Marking structure type not implemented AISMarkingStructure

[gtback]

Just FYI for anyone who reads this thread later: The last several comments are mostly unrelated to this GitHub issue, which is talking about the AIS Marking structure.

Ok, thanks @TheDr1ver and @brlogan.

I think it would be wrong for python-stix to silently ignore data markings it doesn’t understand (at least by default). There’s not a ton of documentation on implementing custom marking extensions, other than looking at existing markings and adapting them. What you’ve done with what’s in the FlexTransform repo is essentially the right approach.

As I mentioned, we also have an implementation of ISA markings, explicitly designed to work with python-stix, that we are going through the process for getting approval to release.

[gtback]

I released python-stix 1.2.0.3 last night.