title: How to increase connection timeout using sqlalchemy with sqlite in python
body: <p>I am using sqlite (v2.6.0) as database backend and using sqlalchemy(v0.7.9) to operate it.
  Recently I got a error <code>OperationalError: (OperationalError) database is locked</code></p>
  
  <p>By searching stackoverflow a possible solution is to increase the timeout of a connection.
  Referece: <a href="https://stackoverflow.com/questions/3172929/operationalerror-database-is-locked">OperationalError: database is locked</a></p>
  
  <p>But I don't know how to did that in sqlalchemy (since connection are actually controlled by it)
  Can someone give me a direction?</p>