Make python interpreter configurable
We should remove the hard-coded python2 and make it configurable in an initialized (following a pattern like: https://rarlindseysmash.com/posts/config-and-generators-in-gems)
We should remove the hard-coded python2 and make it configurable in an initialized (following a pattern like: https://rarlindseysmash.com/posts/config-and-generators-in-gems)