title: why does the python version change when i run it from different locations?
body: <p>When i run the python compiler from ...Anaconda2>python i get python version 2.7.11. But when i run the python compiler from ...Anaconda2/Lib>python i get python version 3.5.1.</p>
  
  <p>Not sure whats happening:</p>
  
  <pre><code>C:\Anaconda2&gt;python
  Python 2.7.11 |Anaconda 2.5.0 (64-bit)| (default, Jan 29 2016, 14:26:21) [MSC v.1500 64 bit (AMD64)] on win32
  Type "help", "copyright", "credits" or "license" for more information.
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  &gt;&gt;&gt; exit()
  
  C:\Anaconda2&gt;cd lib
  
  C:\Anaconda2\Lib&gt;python
  Python 3.5.1 |Anaconda 2.5.0 (64-bit)| (default, Jan 29 2016, 15:01:46) [MSC v.1900 64 bit (AMD64)] on win32
  Type "help", "copyright", "credits" or "license" for more information.
  </code></pre>