Dear j-P,
I'm guessing this has to do with the lazy evaluation in ITK. I don't
know how Eclipse's (and PyDev's) autocompletion works, whether it's
introspection-based or syntax analysis based.
You *could* try deactivating lazy loading in your python code:
import itkConfig
itkConfig.LazyLoading = False
import itk
Good luck,
Charl