Python - 可以在sqlite中查找变量列吗？

Question

我想知道是否可以使用Python和Sqlite3从传入的变量中查找列。以下是代码：

wrenches = db.execute('''
           select w.id, w.desc from wrenches as w
           join users as u on w.dept = u.dept and w.user = u.id
           where u.id = :user
           order by w.id asc''',
           {'user': session['user_id']}).fetchall()

上述工作正常，但我要检查的附加条件是扳手是否共享且与用户传入的部门相同

wrenches = db.execute('''
           select w.id, w.desc from wrenches as w
           join users as u on w.dept = u.dept and w.user = u.id
           where u.id = :user
       >>> or w.shared = 1 and w.dept = :user.dept <<<
           order by w.id asc''',
           {'user': session['user_id']}).fetchall()

我无法理解，所以任何帮助表示赞赏。