The validator crashes if the METS contains a DIV without an attribute LABEL

[spacid]

The METS.xsd allows for a DIV element with no LABEL attribute. Even if the LABEL attribute was mandatory, it should be resolved in a graceful way and not crashing.

The code in question:

eark-validator/eark_validator/mets.py

Line 179 in d8f34de

element.attrib['LABEL'].lower().startswith('representations/'):