title: make Pyspark working inside jupyterhub
body: <p>I have a machine with JupyterHub (Python2,Python3,R and Bash Kernels). I have Spark(scala) and off course PySpark working. I can even use PySpark inside an interactive IPython notebook with a command like:</p>
  
  <pre><code>IPYTHON_OPTS="notebook" $path/to/bin/pyspark
  </code></pre>
  
  <p>(this open a Jupyter notebook and inside Python2 I can use Spark)</p>
  
  <p>BUT I can't get PySpark working inside JupyterHub. </p>
  
  <p><a href="https://github.com/ibm-et/spark-kernel" rel="nofollow">the spark kernel</a> is more than what i really need. </p>
  
  <p>I only need Pyspark inside JupyterHub. Any suggestion ?</p>
  
  <p>thanks.</p>