title: Can I use parallel python 2.7 and python 3.7 in the same Intellij project directory?
body: <p>I use in my Intellij (Ultimate 2019.1) project python 2.7 and 3.7 in the same directory.</p>
  
  <p>If I set projectdir > File > Project structure > Project Settings > Facets > Python > Python Interpreter > Python 2.7</p>
  
  <p>My python 2.7 files show syntax OK but python 3.7 are wrong.</p>
  
  <p>If I change the Interpreter to Python 3.7 my python 3.7 are fine the 2.7 not?</p>