Can I create a virtual environment for Python 3?

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A solution could be to do a node using noetic (which supports python3) and using it with docker (separate environment) This way you should be able to work properly with a computer with ubuntu 16.04 having nodes with python3 in a quite clean way while great part of the code have the original kinetic configuration .

http://wiki.ros.org/docker/Tutorials/...

Another option could be to uninstall ROS Kinetic and install ROS Noetic directly from source

http://wiki.ros.org/Installation/Source

Nevertheless seems like noetic instructions are still not written (but I imagine it should be similar to melodic or kinetic) and I am not sure if it should appear any problem

Hello,

ROS kinetic is not compatible with ROS 3. However I had a similar use case (using python 3 for object detection) and i managed to integrate it to my ros application by using a workaround:

I created a ROS node that handles the inputs/outputs of the application (and their conversions in ROS format). This node would open a python 3 application using the subprocess module:

subprocess.Popen("Pyhton3command".split())

Then i would use a socket in order to communicate between the two processes.

I hope this can help.