I can say one thing - Shedskin compiles to C++, which was very compelling to me for integrating into existing C++ products. Actually another thing too, Shedskin is Open Source under GPLv3. (Like GCC.)
I suppose that's right, I don't think shedskin can call numpy yet, for instance. On the other hand it seems easier to put shedskin on an embedded device, for instance.
I can say one thing - Shedskin compiles to C++, which was very compelling to me for integrating into existing C++ products. Actually another thing too, Shedskin is Open Source under GPLv3. (Like GCC.)
1: https://github.com/shedskin/shedskin/