Binary package “python3-genmsg” in ubuntu focal

Python 3 library for generating Robot OS message and service data

 This package is part of Robot OS (ROS). Project genmsg exists in
 order to decouple code generation (from .msg & .srv format files) from
 the parsing of these files and from implementation details of the
 build system.
 .
 This package contains the Python 3 module.