title: how to dynamic "_or" in filter query sqlalchemy
body: <p>I'm a beginner at using <code>scrape</code> and <code>sqlalchemy</code> and I discovered a problem in this filter query.</p>
  
  <pre><code>data = ['foo','bar']
  q_cat = self.session.query(Category).filter_by(_or(name=='foo',name=='bar')).all()
  </code></pre>
  
  <p>The data variable in my code is dynamic. How to make it dynamic inside <code>_or(...)</code> as well?</p>
  
  <p>Thanks.</p>