Updated imports

wafo/sg_filter/__init__.py

@@ -1,2 +1,2 @@
-from wafo.sg_filter._core import *
+from wafo.sg_filter._core import *  # pylint: disable=wildcard-import
 from wafo.sg_filter import demos

wafo/sg_filter/demos.py

@@ -2,8 +2,8 @@ import numpy as np
 from scipy.sparse.linalg import expm
 from scipy.signal import medfilt
 from wafo.plotbackend import plotbackend as plt
-from wafo.sg_filter import (SavitzkyGolay, smoothn, Kalman, HodrickPrescott,
-                            HampelFilter)
+from wafo.sg_filter._core import (SavitzkyGolay, smoothn, Kalman,
+                                  HodrickPrescott, HampelFilter)
 
 
 def demo_savitzky_on_noisy_chirp():

wafo/sg_filter/tests/conftest.py

@@ -8,5 +8,4 @@
     https://pytest.org/latest/plugins.html
 """
 from __future__ import print_function, absolute_import, division
-
 import pytest  # @UnusedImport