title: How can I get values except for NULL using SQLAlchem?
body: <p>I'd like to get values except for NULL.
  Here's example.</p>
  
  <pre><code>from sqlalchemy import select
  select([table]).execute().fetchone()
   -&gt; ('1', 'some value', 'some value', None, None)
  </code></pre>
  
  <p>I don't want to get <code>None</code>.
  Is there any way to get values except for NULL?</p>
  
  <p>Thanks, in advance.</p>