title: sqlalchemy natural sorting
body: <p>Currently, i am querying with this code: <code>meta.Session.query(Label).order_by(Label.name).all()</code>
  and it returns me objects sorted by Label.name in this manner ['1','7','1a','5c'].  Is there a way i can have the objects returned in the order with their Label.name sorted like this ['1','1a','5c','7']</p>
  
  <p>Thanks!</p>