diff --git a/tc_cross_correlation/normalization.py b/tc_cross_correlation/normalization.py
index a067a73..3d02a75 100755
--- a/tc_cross_correlation/normalization.py
+++ b/tc_cross_correlation/normalization.py
@@ -4,7 +4,7 @@
 
 @author: abell5
 """
-from scipy.signal import triang
+from scipy.signal.windows import triang
 from numpy import sign, arange, zeros, absolute, true_divide, sum,  floor, convolve, amax, logical_and
 import copy
 from obspy.signal import util
diff --git a/tc_cross_correlation/realtime_xcorr.py b/tc_cross_correlation/realtime_xcorr.py
index ea3cea5..5b07c2c 100755
--- a/tc_cross_correlation/realtime_xcorr.py
+++ b/tc_cross_correlation/realtime_xcorr.py
@@ -30,10 +30,10 @@ def __init__(self):
         self._add_output('output', tuple_type=['number'])
     def process(self, inputs):
         store = []
-        for dir in os.listdir(ROOT_DIR + 'DATA/'+ starttime):
-            for f in os.listdir(ROOT_DIR+'/DATA/'+ starttime +'/'+ dir):
-                file=ROOT_DIR+'DATA/'+ starttime + '/'+ dir+'/'+f
-                str1=np.load(file)
+        for dir in os.scandir(ROOT_DIR + 'DATA/' + starttime):
+            for f in os.scandir(ROOT_DIR + '/DATA/' + starttime + '/' + dir.name):
+                file = ROOT_DIR + 'DATA/' + starttime + '/' + dir.name + '/' + f.name
+                str1 = np.load(file)
                 index = len(store)
                 for i in range(index):
                     self.write('output',[i, index, store[i], str1])
diff --git a/tc_cross_correlation/xcorr.py b/tc_cross_correlation/xcorr.py
index 4a1593e..0c9520f 100755
--- a/tc_cross_correlation/xcorr.py
+++ b/tc_cross_correlation/xcorr.py
@@ -7,7 +7,7 @@
 
 from obspy.signal.util import next_pow_2
 from scipy.fftpack import fft, ifft
-from numpy import complex, conjugate, roll, copy
+from numpy import complex64, conjugate, roll, copy
 
 def xcorrf(trace1, trace2, shift=None):
     """
@@ -26,7 +26,7 @@ def xcorrf(trace1, trace2, shift=None):
     # Always use 2**n-sized FFT, perform xcorr
     size = max(2 * shift + 1, (N1 + N2) // 2 + shift)
     nfft = next_pow_2(size)
-    print size
+    print(size)
     #Calculate fft of data1 and data2
 
     IN1 = fft(data1, nfft)