title: Does Conda replace the need for virtualenv?
body: <p>I recently discovered <a href="http://conda.pydata.org/docs/index.html" rel="noreferrer">Conda</a> after I was having trouble installing SciPy, specifically on a Heroku app that I am developing.</p>
  
  <p>With Conda you create environments, very similar to what <a href="https://virtualenv.readthedocs.org/en/latest/" rel="noreferrer">virtualenv</a> does. My questions are:</p>
  
  <ol>
  <li>If I use Conda will it replace the need for virtualenv? If not, how do I use the two together? Do I install virtualenv in Conda, or Conda in virtualenv?</li>
  <li>Do I still need to use pip? If so, will I still be able to install packages with pip in an isolated environment? </li>
  </ol>