title: False is not true error?
body: <p>I'm trying to set global definitions to True, but I'm always getting an error saying "AssertionError: False is not True"</p>
  
  <p>From instructions: 'Only things that are expected to be constant should be defined as globals. That is true for all of these.'    </p>
  
  <pre><code>#global definitions
  UP = True
  DOWN = True
  LEFT = True
  RIGHT = True
  dirs = [UP, DOWN, LEFT, RIGHT]
  
  #a bunch of code follows here
  </code></pre>
  
  <p>This is the one of the errors (for UP) I've been getting.</p>
  
  <pre><code>self.assertTrue(isinstance(UP,Direction))
  AssertionError: False is not true
  </code></pre>
  
  <p>I have a separate class called Direction created. Furthermore, I have to create an attribute that must be one of Up, Down, Left, and Right but I'm not sure how to do that.</p>
  
  <p>attribute: value::str. Must be one of "UP", "DOWN", "LEFT", or "RIGHT".</p>
  
  <pre><code>#Direction class
  class Direction:
  
      value = dirs
  </code></pre>