Invalid label retrieval when /Kids is an array of multiple /Nums

[naquad]

Description of the bug

Page.get_label fails with the following error:

Traceback (most recent call last):
  File "/home/naquad/bin/./pdfannots.py", line 445, in <module>
    main()
    ~~~~^^
  File "/home/naquad/bin/./pdfannots.py", line 442, in main
    extract_annotations_to_html(TEMPLATES[args.template], args.pdf_path, output_path, args.pages)
    ~~~~~~~~~~~~~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/home/naquad/bin/./pdfannots.py", line 316, in extract_annotations_to_html
    "title": page.get_label(),
             ~~~~~~~~~~~~~~^^
  File "/home/naquad/.local/lib/python3.13/site-packages/pymupdf/utils.py", line 5297, in get_label
    labels = page.parent._get_page_labels()
  File "/home/naquad/.local/lib/python3.13/site-packages/pymupdf/__init__.py", line 3420, in _get_page_labels
    mupdf.pdf_dict_get( mupdf.pdf_array_get(kids, i)),
    ~~~~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
TypeError: pdf_dict_get() missing 1 required positional argument: 'key'

I've traced the issue to this invocation: https://github.com/pymupdf/PyMuPDF/blob/main/src/__init__.py#L3419

            nums = mupdf.pdf_resolve_indirect(
                    mupdf.pdf_dict_get( mupdf.pdf_array_get(kids, i)),
                    PDF_NAME('Nums'),
                    )

Mind where the PDF_NAME('Nums') is passed. Instead of passing it as the second argument to pdf_dict_get it is passed to the pdf_resolve_indirect.

How to reproduce the bug

Find a PDF where /Kids is an array of multiple /Nums and try to get the page label.

P. S. Sorry, can't share the PDF :(

PyMuPDF version

1.25.3

Operating system

Linux

Python version

3.13

[julian-smith-artifex-com]

Thanks for this, you're quite right i think. Will push a fix soon.

[julian-smith-artifex-com]

Fixed in PyMuPDF-1.25.4.