Having trouble with the validation error for a top-level oneOf jsonschema construct. I've put an example script together showing the problem where I have a missing 'id' property that is required. https://gist.github.com/7bb4118cfe21b962cdc1.git

The error I get is:

jsonschema.exceptions.ValidationError: {u'graph': {u'label': u'testlabel'}} is not valid under any of the given schemas Failed validating u'oneOf' in schema: 

followed by the entire schema file.