testing

nifty/energies/wiener_filter_energy.py

 from .energy import Energy
-from nifty.operators.curvature_operators import WienerFilterCurvature
+from nifty.operators import WienerFilterCurvature
 
 class WienerFilterEnergy(Energy):
     """The Energy for the Wiener filter.

nifty/operators/__init__.py

@@ -40,4 +40,4 @@ from composed_operator import ComposedOperator
 
 from response_operator import ResponseOperator
 
-from curvature_operators import *
+from curvature_operators import WienerFilterCurvature