def execute():
if len(sys.argv) != 2:
sys.exit("no task IUI given")
iui = sys.argv[1]
try:
db = Database()
db.open()
task = Task(db, iui=iui)
if task.status != configuration.CREATED:
raise ValueError("task status is not '%s'" % configuration.CREATED)
task.status = configuration.EXECUTING
except ValueError, msg:
sys.exit(str(msg))
