fix: use pop() instead of del in process_none_page_numbers #70
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Using del item_copy['page'] raises KeyError if 'page' key doesn't exist.
Use pop('page', None) for safe removal without exception.
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Fixes #69
Summary
Replace
del item['page']withitem.pop('page', None)to avoid KeyError when 'page' key doesn't exist.Change
del item_copy['page']→item_copy.pop('page', None)del item['page']→item.pop('page', None)Impact
KeyErrorcrashes the process if 'page' key is missing