can nameko use python3?
Yes, Nameko works with Python 3.
You just need to execute nameko run in an environment where Python 3 is the default (or only) interpreter.
nameko run --config ./foobar.yaml my_app
the above line defaults to to running my_app with python2. can I change it to python3? the documentation doesn't show this option but considering you get get nameko with pip3 it sounds reasonable.