Blame for repro_error.py

import pymupdf as fitz
from layout_utils import extract_blocks_spans

def test_extraction():
    # Open the real PDF
    doc = fitz.open("logic.pdf")
    # doc.new_page() ... no
    
    # Analyze it using the function I modified
    try:
        blocks = extract_blocks_spans(doc, 0)
        print(f"Blocks extracted: {len(blocks)}")
        for i, b in enumerate(blocks):
            bbox = b.bbox
            print(f"Block {i} bbox type: {type(bbox)}")
            if isinstance(bbox, tuple):
                print(f"Block {i} bbox len: {len(bbox)}")
                if len(bbox) == 4:
                    print(f"Block {i} sample: {bbox}")
                    # Try unpacking
                    x0, y0, x1, y1 = bbox
                    # Try explicit float cast
                    _ = float(x0)
            else:
                print(f"Block {i} bbox is NOT tuple: {bbox}")

    except Exception as e:
        print(f"Error caught: {type(e).__name__}: {e}")
        import traceback
        traceback.print_exc()

if __name__ == "__main__":
    test_extraction()