Update util.py

Author: CasterShade

pysepm/util.py

@@ -1,5 +1,7 @@
 import numpy as np
-from scipy.signal import firls,kaiser,upfirdn
+from scipy.signal import firls, upfirdn
+from scipy.signal.windows import kaiser
+
 from fractions import Fraction
 
 def extract_overlapped_windows(x,nperseg,noverlap,window=None):
@@ -52,4 +54,4 @@ def resample_matlab_like(x_orig,p,q):
     if x_orig.shape[0]<x_orig.shape[1]:
         y=y.T
 
-    return y
+    return y