title: No module named 'pyspark' when running Jupyter notebook inside EMR
body: <p>I am (very) new to AWS and Spark in general, and I'm trying to run a notebook instance in Amazon EMR. When I try to import pyspark to start a session and load data from s3, I get the error No module named 'pyspark'. The cluster I created had the Spark option filled, what am I doing wrong?</p>