python3-colcon-core 0.12.1-1 (i386 binary) in ubuntu mantic

 This package is part of ROS 2, the Robot Operating System.
 colcon is a meta build tool to improve the workflow of building, testing and
 using multiple software packages. It is the recommended tool for ROS 2 to set
 up workspaces and build packages from source, but can also handle old ROS 1
 workspaces.
 .
 This package installs the core library for Python 3.