I had used a very similar one for a while https://github.com/ksamuel/Pyped and found it quite useful. In that other utility they mention "'py' has been renamed to 'pyp' to avoid conflict with the new tool in the Python stdlib named 'py'" I wonder if such a problem would arise for your project.
Yes, the name is controversial. But it's also highly functional. I do recommend that you try out pythonpy even though you have already tried one of the other similar tools. I think you'll find it to be simpler, without losing much in terms of functionality. Also, the others haven't implemented ipython style tab completion from the command line.
You're not really addressing the one concern voiced in the post you are replying to. As much as you might find the above information interesting, I'm sure tucif wasn't looking for a sales pitch.