IMHO, it feels quite awkward to have GNU/Linux system under the hood, and "run" Python by sending requests to some interpreter-hosting third-party service.
However, I would extremely enjoy Python interpreter being hooked with Chrom{e,ium}, either as Python-to-Javascript compiler, or native code plugin. Preferably, with ability to interact with DOM and Javascript.
Come on, they wanted to give thousands of devs the chance to re-implement C apps in java. Poorly. Under the delusion that they can become ramen-profitable one day.
OTOH, Angry Birds is awesome, so I suppose it wasn't a total waste.
All these hacks to route around limitations of web-based computers seem like such a step backwards. We already have a nice python interpreter. Why are we reinventing it in javascript?