Unichunking
Extract LLM-friendly chunks from any file type.
Supported file types are :
- DOCX & DOCX-like (DOC, ODT)
- PPTX & PPTX-like (PPT, ODP)
- XLSX & XLSX-like (XLS, ODS)
- TXT, MD, CSV
- IPYNB
Installation
To install, run the following command:
python3 -m pip install delos-unichunking
How to use
The main functions are :
extract_subchunksreturns a list of all the text particles in the file.split_chunks_with_overlaptransforms a list of subchunks on a given page into a list of chunks following default or specified parameters for minimum/maximum token size and overlap.build_chunked_pagesreturns a list of "pages", which are lists of formated chunks, following the structure of the document.compute_pagesapproximates the pagination of a file that does not have a native pagination system (such as DOCX) by comparing it to a PDF version.
Specificities
Please note that the package requires a LibreOffice installation to run soffice commands, used during file conversions : for instance, DOC/ODT are first converted to DOCX format and processed as such.
The page numbers computed for DOCX files are an approximation and can be off by a few pages for large files.
Artifical page numbers are used for page-less structures such as TXT files, or to split large XLSX sheets into multiple pages, to follow a tokens-per-page limit.
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