Binary package “python3-demjson” in ubuntu oracular

encoder, decoder, and lint/validator for JSON in Python (python3)

 demjson is a comprehensive Python language binding to the JSON
 language-independent data encoding standard, which is often used as a
 simpler substitute for XML in AJAX-based web applications.
 .
 This package contains the python3 library and the jsonlint-py3 script.