can add a ping() method?

[ewing333]

   I just use gevent frame to make a game socket server.

and use DBUtils+umysqldb(https://github.com/hongqn/umysqldb by hongqn) as you known umysqldb is compatible wrapper around ultramysql.
DBUtils.PooledDB need dbapi umysqldb's con has a ping() method,if not sometimes will appear mysql error "cursor closed", and hongqn as me to pull a request to you to add one,then he can add in umysqldb.
thanks very much!

[V-E-O]

+1
is_connected() simply cannot solve the connection problem.