title: stalker python library throws an error for db.session
body: <p>I'm trying to use stalker for my production company and I seem to not be able to go through the help file. </p>
  
  <p><a href="http://pythonhosted.org/stalker/tutorial.html" rel="nofollow">http://pythonhosted.org/stalker/tutorial.html</a></p>
  
  <p>when I'm trying the command:</p>
  
  <pre><code>db.session.add(myUser) 
  </code></pre>
  
  <p>it threw an error:</p>
  
  <pre><code>Traceback (most recent call last):
    File "&lt;pyshell#50&gt;", line 1, in &lt;module&gt;
      db.session.add()
  AttributeError: 'module' object has no attribute 'add'
  </code></pre>
  
  <p>I'm relatively new to python. Can anyone tell me what's wrong in simple terms? Thank you </p>