Ability to find pythonnet version at runtime / define __version__ #1909

Details

• I would like to be able to find out which version of pythonnet is installed in a particular runtime environment from the python side. Most packages define a package.__version__ for that purpose. I couldn't find anything like that in pythonnet.

I tried

    print(pythonnet.__version__)
    print([v for v in dir(pythonnet) if "version" in v])

I checked on pythonnet==3.0.0rc4.