title: Python 2, 3 Mac dependencies
body: <p>I'm really getting confused between these different versions for Mac. I want to use Python 3 but that's causing errors using pip.</p>
  
  <p>So now every time i have to install a dependency I must use the command</p>
  
  <pre><code>sudo pip install dependency --upgrade --ignore-installed six 
  </code></pre>
  
  <p>Even this installs the dependency for python 2 and not 3.</p>
  
  <p>Can anyone please suggest what I should do to just default to python 3 all the time and be able to install any dependency with just</p>
  
  <pre><code>pip install dependency
  </code></pre>
  
  <p>I'm using Macbook Pro 2010 with Mac OS sierra</p>