def apply_driver_hacks(self, app, info, options):
SAExtension.apply_driver_hacks(self, app, info, options)
if info.drivername == 'sqlite':
connect_args = options.setdefault('connect_args', {})
if 'isolation_level' not in connect_args:
# required to support savepoints/rollback without error. It disables
# implicit BEGIN/COMMIT statements made by pysqlite (a COMMIT kills all
# savepoints made).
connect_args['isolation_level'] = None
