Array validation fails if array items are unspecified

[st31ny]

Consider this schema:

{
    "title": "foo",
    "type": "object",
    "properties": {
        "arr": {
            "type": "array"
        }
    }
}

When I try to instantiate the schema, I cannot use the property arr:

ob=pjs.ObjectBuilder(schema)
cl=ob.build_classes()
cl.Foo(arr=[1,2,3])

This raises an exception:

Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
  File "/usr/lib/python3/dist-packages/python_jsonschema_objects/classbuilder.py", line 197, in __init__
    setattr(self, prop, props[prop])
  File "/usr/lib/python3/dist-packages/python_jsonschema_objects/classbuilder.py", line 223, in __setattr__
    prop = getattr(self.__class__, self.__prop_names__[name])
AttributeError: type object 'foo' has no attribute 'arr'

The same happens when I instantiate Foo first and then try to assign arr. Interestingly, repr(cl.Foo()) shows the property: '<foo arr=None>'

[stale]

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