Kernel dies under JupyterHub

Kernel is identified by jupyterhub but fails to start

Dead kernel

The kernel has died, and the automatic restart has failed. It is possible the kernel cannot be restarted. If you are not able to restart the kernel, you will still be able to save the notebook, but running code will no longer work until the notebook is reopened
```.

[sdd3]

Thanks for the suggestion of looking at kernel.json @ryukinix. I edited its argument list from python to python3 and all seems ok

{
  "argv": [
    "python3",
    "-m",
    "c_kernel",
    "-f",
    "{connection_file}"
  ],
  "display_name": "C",
  "language": "c"
}

[brendan-rius]

The project now requires Python 3 😃 (see 110b31e505cafd5eddb4cd1bae1631553b64eac0)