from ldtp import *
datafilename = 'no.xml'
from ldtputils import *
data_object = Ldtp
LdtpDataFileParser  LdtpExecutionError
data_object = LdtpDataFileParser (datafilename)
num = data_object.gettagvalue ('no')
num1= data_object.gettagvalue ('op')
num2= data_object.gettagvalue ('no2')