Moving node coordinates in ABAQUS using Python

[GVallee]

I'm new to python programming and I'm trying to perform a very simple task. I've opened a odb database and read in a model and part in a deformed configuration. Looks fine. Now I want to simply move a node by a prescribed offset using the editNode method but I can't seem to get it to work. A piece of the script is as foolows:

import meshEdit
myOdb = visualization.openOdb(path='Brick1.odb')
myViewport.setValues(displayedObject=myOdb)
myPart = mdb.models['Model-1'].PartFromOdb(name='NewBrick',fileName='Brick1.odb',shape=DEFORMED)
node37 = myPart.nodes[36]
print 'oldNode 37', node37
newNode37 = myPart.editNode(nodes=node37)
print 'newnode37', newNode37
The program returns "none"

Any advice?
Thanx