Binary package “python3-ly” in ubuntu bionic

Tool and library for manipulating LilyPond files (Python 3)

 python-ly provides a Python library "ly" containing various Python modules
 to parse, manipulate or create documents in LilyPond format.
 A command line program "ly" is also provided that can be used to do various
 manipulations with LilyPond files.
 .
 The python-ly package is Free Software, licensed under the GPL. This package
 is written by the Frescobaldi developers and is used extensively by the
 Frescobaldi project. The main author is Wilbert Berendsen.
 .
 The LilyPond format is a plain text input format that is used by the
 GNU music typesetter LilyPond (www.lilypond.org).
 .
 This package installs the "ly" tool and library for Python 3.