title: Difference between ":", "@" and nothing in python docstrings
body: <p>I'm just trying to get a better feel for the layout of Python docstrings (Between the <code>""" """</code>)</p>
  
  <p>I've seen docstrings with different layouts...such as...</p>
  
  <pre><code>"""
  @DESCRIPTION
  Ive seen tags STARTING with an at-sign
  
  :DESCRIPTION:
  Tags with colons
  
  DESCRIPTION
  And tags with nothing
  
  """
  </code></pre>
  
  <p>Do any of these have functional action? Is the <code>@</code> associated with Elixir? Or are these just preferences amongst developers? I've looked through the style guide for docstrings, but can't see where it addresses such things...</p>
  
  <p>Thanks!</p>