title: conda list doesn't show installed package
body: <p>I have been listing the packages in an environment using 'conda list'.  The list that is then produced doesn't include packages that I know are installed in the environment, in this case, flickrapi.</p>
  
  <p><code>((getpics)) C:\Users\Rdebbout&gt;conda list fl
  packages in environment at C:\Users\Rdebbout\AppData\Local\Continuum\Anaconda2\envs\getpics:
  pyflakes                  1.1.0                    py27_0</code></p>
  
  <p>This is pointing to the correct environment and if you look below, when I am in the same environment, I can import flickrapi without a problem</p>
  
  <pre><code>    ((getpics)) C:\Users\Rdebbout&gt;ipython
  Python 2.7.11 |Continuum Analytics, Inc.| (default, Feb 16 2016, 09:58:36) [MSCv.1500 64 bit (AMD64)]
  Type "copyright", "credits" or "license" for more information.
      IPython 4.2.0 -- An enhanced Interactive Python.
  ?         -&gt; Introduction and overview of IPython's features.
  %quickref -&gt; Quick reference.
  help      -&gt; Python's own help system.
  object?   -&gt; Details about 'object', use 'object??' for extra details.
  
  In [1]: from flickrapi import FlickrAPI
  
  In [2]:
  </code></pre>
  
  <p>What is the reason for this?</p>