bug: Fix layout sorting when bbox is None (ChipperV1)

[0-hero]

Error

File "../unstructured-inference/inference/ordering.py", line 32, in order_layout 
        layout.sort(
     File "../unstructured-inference/inference/ordering.py", line 33, in <lambda>
        key=lambda element: (element.bbox.y1, element.bbox.x1, element.bbox.y2, element.bbox.x2), 
AttributeError: 'NoneType' object has no attribute 'y1'

Debugging

When running chipperv1 on a document, output for a page had the following element in the layout

LayoutElement(bbox=None, text='', source=<Source.CHIPPERV1: 'chipperv1'>, type='Picture', prob=None, image_path=None, parent=LayoutElement(bbox=Rectangle(x1=101.26530612244898, y1=87.20068027210884, x2=1654, y2=1675.0969387755104), text='', source=<Source.CHIPPERV1: 'chipperv1'>, type='Picture', prob=None, image_path=None, parent=None))

Possible Fix

Change unstructured_inference/inference/ordering.py line 33 from

layout.sort(
        key=lambda element: (element.bbox.y1, element.bbox.x1, element.bbox.y2, element.bbox.x2),
    )

to

layout.sort(
        key=lambda element: (
            float('inf') if element.bbox is None else element.bbox.y1,
            float('inf') if element.bbox is None else element.bbox.x1,
            float('inf') if element.bbox is None else element.bbox.y2,
            float('inf') if element.bbox is None else element.bbox.x2
        )
    )

[ajjimeno]

@0-hero we have fixed an issue with that error message from Chipper an hour ago. Could you try the latest version of unstructured-inference? Which version did you try it on?

[0-hero]

I pulled immediately after chipperv2 was merged. Let me try with the latest version

[0-hero]

@ajjimeno I still face the issue with the latest version. #258 doesn't seem to have fixed it for my document