Missing runtime deps on python3?

[artivis]

Hi,
If I understood properly, this package takes care of installing the /opt/ros/distro/(local_)setup.xx scripts. These files template are located in the ament_package and are specialized during build by a ament_cmake_core script. Both of those packages are build dependencies.

Now, the /opt/ros/distro/(local_)setup.xx scripts make use of the Python3 interpreter (see here and onward) which isn't an exec-dep and may very well not be installed resulting in,

/usr/bin/env: ‘python3’: No such file or directory
error: unable to find fallback python3 executable

The latter message coming from the local_setup.xx script.

So, shouldn't this package have an <exec_depend>python3</exec_depend>?