title: How to document a single private attribute with Sphinx autodoc?
body: <p>I'm using sphinx and the autodoc extension to automatically generate documentation from docstrings in my python modules.</p>
  
  <p>I currently using the <code>automodule</code> directive to document all the public members of the module</p>
  
  <pre><code>.. automodule::
      :members:
  </code></pre>
  
  <p>My module also has a number of private attributes.  I'd like to include one of them in the documentation.</p>
  
  <p>Is there a way to tell <code>automodule</code> to document all public members and also this one private member?  I've tried using the <code>:private-members:</code> option, but that includes all private members.  I've also tried manually specifying the private attribute, but then it doesn't document any of the public members.</p>
  
  <pre><code>.. automodule::
      :members: _PRIVATE_ATTR
  </code></pre>
  
  <p>I'd like to avoid having to manually list every single public member just to add this one private member.</p>
  
  <p>Is there a way to do this with autodoc?</p>