title: How to install a package for specific python version
body: <p>I have two versions of python (3 and 2) and Python 2 is the default one, I want to install a specific package only for Python 3,</p>
  
  <p>I am using windows 7</p>
  
  <p>whenever i use pip install, it is installing python 2 package</p>
  
  <p>How to specify which python version for pio install</p>