If that's your entire script, then nothing will be output since you are not creating the main graphics window using
viz.go(). Try running this script:
Code:
# data aggregation of Eye tracking from SMI and synching with Biopac recording channels
import viz
import vizact
viz.go()
smi = viz.add('smi.dle')
tracker = smi.addEyeTracker(address='192.168.10.1', port=4444)
def showData():
print tracker.getPosition(smi.PIXELS)
print 'Calibration size:',tracker.getCalibrationSize()
vizact.ontimer(0,showData)