unstructured `partition_pdf()` fails with `Resource punkt_tab not found`
NLTK 3.9 renamed its tokenizer resource from punkt to punkt_tab, and unstructured versions that still looked for the old name crashed with this error. The quick fix: download the resource yourself with import nltk; nltk.download('punkt_tab'), which unblocks the run. The real fix: update to unstructured 0.16.16 o…
Problem outcome: unknown