Has someone here used or at least tried both and can give a brief overview of what’s supported in one vs the other? Both “sc3” and Supriya are Python front-ends for scsynth that have seen reasonably recent development efforts. The latter has more issue filed with its github tracker, but most are self-filed by the main dev to keep track of enhancements they want to make, so that’s not too illuminating.
The most obviously named attempt at this, called supercollider · PyPI has apparently been abandoned by its dev, a couple of years ago.
There’s also FoxDot, I see, but it seem to want to go in a slightly different direction as it appears to have its own idea of how the higher-level composition should be done. On that angle, there’s also “scamp” that can use both scsynth, albeit somewhat indirectly and its own fluidsynth-based synthesizers. Actually, looking at the FoxDot tutorial, it also uses some sclang bootstrap code, probably more of it than scamp. Neither of these latter two projects has an actual SC synthdef compiler (graph builder) of their own, it seems. The abandoned “supercollider” python package didn’t have one either.