Binary package “python3-citeproc” in ubuntu focal

Citation Style Language (CSL) processor for Python3

 Citeproc-py is a library that produces formatted bibliographies and
 citations from bibliographic databases following formatting instructions
 provided by XML style files written in the Citation Style Language (CSL).
 .
 Currently, BibTeX and JSON are supported as input database formats, and
 plain text, reStructuredText and HTML as output format.
 .
 This package contains the Python 3 modules and the CLI tool csl_unsorted.