Skip python dependencies?

[VarLad]

Any way I can skip python dependencies while downloading the ros2 source?
I only want to use cpp, any option available for that?

[clalancette]

I don't believe we have a way to skip python while downloading the source.

There is some talk about doing a "minimal" version of ROS 2 that doesn't need python; you can follow the discussion at ros-infrastructure/rep#231 .

[emersonknapp]

Downloading the source and building python-based packages are different things, really. You could construct a .repos file that only contained dependencies up through rclcpp fairly easily. This one https://github.com/emersonknapp/ros2-toolchain-crosscompile/blob/master/minimal_cpp_ros2_master.repos is definitely out of date by now, but is probably a fairly close approximation to that dependency set.

I will note that the commandline utilities (ros2 topic, ros2 launch etc) are all python-based, so you will have limited ways to interact with a ros2 application without any Python present.

Another hiccup that hasn't been figured out yet in the ros-infrastructure/rep#231 discussion is that even for pure-C packages like rcl, many of the tests use launch, bringing in a Python dependency for running/building tests (this may not be as much of a concern in your case)