title: How do I install a python deb package for Python3 on Ubuntu?
body: <p>I downloaded a deb package <code>panda3d1.9_1.9.3-xenial_amd64.deb</code> and I want to install it for Python 3. My OS is Linux Ubuntu 16.04. The default python is 2.7.12 and I would prefer to keep it as default, but Python 3 is installed too and available to use. How do I install this package for Python 3 only?</p>
  
  <p>I am not sure <code>pip</code> may help.</p>