from visad import Real, RealTuple, RealType, RealTupleType
from visad.python.JPythonMethods import *

degC = makeUnit("degC")
temperature = getRealType("temperature", degC)

kts = makeUnit("kts")
speed = getRealType("speed", kts)

sec = makeUnit("seconds")
time = getRealType("time", sec)

mydata = RealTupleType(time, speed, temperature)

obsTemp = 32
obsSpeed = 15
obsTime = 4096

values = (obsTime, obsSpeed, obsTemp)

obs = RealTuple(mydata, values)
print "obs =",obs