title: unable to add spark to PYTHONPATH
body: <p>I am struggling to add spark to my python path:</p>
  
  <pre><code>(myenv)me@me /home/me$ set SPARK_HOME="/home/me/spark-1.2.1-bin-hadoop2.4"
  (myenv)me@me /home/me$ set PYTHONPATH=$PYTHONPATH:$SPARK_HOME:$SPARK_HOME/python:$SPARK_HOME/python/build:$SPARK_HOME/bin
  
  (myenv)me@me /home/me$ python -c 'import sys; print(sys.path)'
  ['', '/home/me/.virtualenvs/default/lib/python2.7', '/home/me/.virtualenvs/default/lib/python2.7/plat-x86_64-linux-gnu', '/home/me/.virtualenvs/default/lib/python2.7/lib-tk', '/home/me/.virtualenvs/default/lib/python2.7/lib-old', '/home/me/.virtualenvs/default/lib/python2.7/lib-dynload', '/usr/lib/python2.7', '/usr/lib/python2.7/plat-x86_64-linux-gnu', '/usr/lib/python2.7/lib-tk', '/home/me/.virtualenvs/default/local/lib/python2.7/site-packages', '/home/me/.virtualenvs/default/lib/python2.7/site-packages']
  
  (myenv)me@me /home/me$ python -c 'import pyspark'
  Traceback (most recent call last):
    File "&lt;string&gt;", line 1, in &lt;module&gt;
  ImportError: No module named pyspark
  </code></pre>