title: How to switch between python version Windows
body: <p>Im trying to switch between python versions <code>3.6.6</code> and <code>3.7.0</code> in windows. I tried <code>py -3.6.6</code> and doesn't work. Looked for options in <code>py -h</code>, found none. I saw a couple of answers for switching between python versions <code>2.x</code> and <code>3.x</code> by adding <code>#!python3</code> at the start of the file.</p>
  
  <p>I'm able to switch between these by moving path variables up and down but I want to know if there is a option to switch between versions in <code>cmd</code> like there is <code>brew switch python version</code> in IOS. </p>
  
  <p>Thank you.</p>