Do those work if you want cross-browser compatibility for users who don't have certain plugins? I'm thinking technologies like Skulpt or Pyjamas, that let you

Do those work if you want cross-browser compatibility for users who don't have certain plugins? I'm thinking technologies like Skulpt or Pyjamas, that let you use Python in JS, are better. It's been a while since I investigated this situation, does anyone know of other players?