title: sqlalchemy filter using in_ raise programmingerror
body: <p>I am trying to do a simple filter operation on a query in sqlalchemy, like this:</p>
  <pre><code>delete(label_pick_detail).where(label_pick_detail.c.tag.in_(set(tag_list)))
  </code></pre>
  <p>but it raise an error</p>
  <pre><code>pymysql.err.ProgrammingError: (1064, &quot;You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near \'[POSTCOMPILE_tag_1])\' at line 1&quot;)\n']
  </code></pre>
  <p>the query is</p>
  <pre><code>DELETE FROM label_pick_detail WHERE label_pick_detail.tag IN (__[POSTCOMPILE_tag_1])
  </code></pre>
  <p>what should I do?</p>