246         if (request.exception is not None and not isinstance(

   246         if (request.exception is not None and not isinstance(

   247             request.exception, (

   247             request.exception, (

   248                 httpexceptions.HTTPSuccessful,

   248                 httpexceptions.HTTPSuccessful,

   249                 httpexceptions.HTTPRedirection))):

   249                 httpexceptions.HTTPRedirection))):

   250             cnx.rollback()

   250             cnx.rollback()

   251         else:

   253         else:

   252             cnx.commit()

   254             cnx.commit()

   253         cnx.__exit__(None, None, None)

   255         cnx.__exit__(None, None, None)

   254 

   256 

   255     request.add_finished_callback(cleanup)

   257     request.add_finished_callback(cleanup)