Compatibility with python 3

bob/learn/em/__init__.py

@@ -12,7 +12,7 @@ from ._library import *
 from . import version
 from .version import module as __version__
 from .__MAP_gmm_trainer__ import *
-from train import *
+from .train import *
 
 def ztnorm_same_value(vect_a, vect_b):
   """Computes the matrix of boolean D for the ZT-norm, which indicates where