title: How can I use both Anaconda versions (2.7 & 3.5)?
body: <p>I was using the Anaconda <code>3.5</code> <a href="https://www.continuum.io/downloads#windows" rel="noreferrer">distro</a> in a Windows 10 machine. Due to dependencies in libraries that I want to work with, I had to have the <code>2.7</code> version installed as well. </p>
  
  <p>The good news is that the libraries I needed can now work with the <code>2.7</code> version smoothly and Visual Studio 2015 automagically detected my new Python environment. </p>
  
  <p>The problem comes when using the command line. Upon issuing the command</p>
  
  <pre><code>conda info --envs
  </code></pre>
  
  <p>I get</p>
  
  <pre><code>root                  *  C:\Users\norah\Anaconda2
  </code></pre>
  
  <p>i.e. a single environment (to my understanding and search so far, according to <a href="http://conda.pydata.org/docs/using/envs.html" rel="noreferrer">this</a> I should see two envs listed). This means I can't use <code>conda</code> to acquire new packages for my <code>Python3.5</code> installation, at least not at the command line as I used to since <code>conda</code> only refers to <code>Python2.7</code>. The same goes for the GUI version, Anaconda navigator (I'm not very fond of the GUI version but I tried it out). </p>
  
  <p>There's also no way of launching python3 from the command line since </p>
  
  <pre><code>$python
  </code></pre>
  
  <p>always fires up python2.7 and issuing <code>$python3</code> or <code>$python3.5</code> in the command line doesn't seem to work (nor would adding the path of python3 to the system since the actual executable has the same name as python2 i.e. <code>python.exe</code>) </p>
  
  <p>Is my system taken over by Python2.7? <strong>Is anyone here using them both smoothly and if so could you please elaborate on how to do that</strong>? Was it a "no no" move to install both versions of Anaconda?</p>