In d460a30
@dpgeorge commented:

There was a discussion in #440 about how to provide the "version" in a CPython compatible way. The outcome of that discussion was to use sys.implementation (https://docs.python.org/3.3/library/sys.html#sys.implementation) but it was never implemented. I guess now is the time to do it. Eg sys.implementation would return: (name='micropython', version=(1.4.0)). We are free to add named fields to this tuple (as long as they begin with an underscore), so could add something like _board="pyboard" or _board="wipy" etc. Probably we need an issue to discuss this :)

I was not aware of that discussion, but I agree with the proposal. So, we can add _board to specify a board name, but how to include the version of the "port"?