You might want to clarify that this "compatible" is non-exclusive.  That is, when I first read this I thought you meant it works *only* with those engines, but I now realize you're saying it works with those in addition to standard LaTeX.

At the same time, perhaps also mention any preferences/compatibilities with particular LaTeX distributions?  I see from the pythontex manual that you recommend TeXLive or MiKTeX, so you might just mention that those are preferred.