title: How to upgrade Python version on Qubole?
body: <p>The current version on Qubole is 3.5.3, and some packages, like PyMC3 and future XGBoost need higher versions. 
  How do I upgrade? And would that affect other clusters' settings?</p>
  
  <p><a href="https://i.stack.imgur.com/AgTkB.png" rel="nofollow noreferrer">error message</a></p>