I have a question about link data

[farshizzo]

Link objects do not get updated until later on in the update cycle. There are a few ways to deal with this.

1) Register your callback with a priority greater than viz.PRIORITY_LINKS

2) Manually update the link before retrieving the values from the bone:

link.update()
print sensor.getEuler(), bone.getEuler()

3) Retrieve the euler values directly from the link:

print link.getEuler()