diff --git a/applications/DAIN/predict.py b/applications/DAIN/predict.py
index 3a8294e1e9f9a6f8d2be62c7f1258a81d37760b3..39290433b2b0cfbc2bfcce18d800740987c1d131 100644
--- a/applications/DAIN/predict.py
+++ b/applications/DAIN/predict.py
@@ -202,12 +202,6 @@ class VideoFrameInterp(object):
                 X0 = img_first.astype('float32').transpose((2, 0, 1)) / 255
                 X1 = img_second.astype('float32').transpose((2, 0, 1)) / 255
 
-                #if key_frame:
-                #    y_ = [
-                #        np.transpose(255.0 * X0.clip(0, 1.0), (1, 2, 0))
-                #        for i in range(num_frames)
-                #    ]
-                #else:
                 assert (X0.shape[1] == X1.shape[1])
                 assert (X0.shape[2] == X1.shape[2])
 
diff --git a/applications/DAIN/util.py b/applications/DAIN/util.py
index 2bd98e4915c5d95920322e9bcd778ad335ff36ff..dc343ff20668f0b9db3a426a3789943ea4e28cb5 100644
--- a/applications/DAIN/util.py
+++ b/applications/DAIN/util.py
@@ -48,24 +48,24 @@ def combine_frames(input, interpolated, combined, num_frames):
 
 
 def remove_duplicates(paths):
-    def dhash(image, hashSize=8):
+    def dhash(image, hash_size=8):
         gray = cv2.cvtColor(image, cv2.COLOR_BGR2GRAY)
-        resized = cv2.resize(gray, (hashSize + 1, hashSize))
+        resized = cv2.resize(gray, (hash_size + 1, hash_size))
         diff = resized[:, 1:] > resized[:, :-1]
         return sum([2**i for (i, v) in enumerate(diff.flatten()) if v])
 
     hashes = {}
-    imagePaths = sorted(glob.glob(os.path.join(paths, '*.png')))
-    for imagePath in imagePaths:
-        image = cv2.imread(imagePath)
+    image_paths = sorted(glob.glob(os.path.join(paths, '*.png')))
+    for image_path in image_paths:
+        image = cv2.imread(image_path)
         h = dhash(image)
         p = hashes.get(h, [])
-        p.append(imagePath)
+        p.append(image_path)
         hashes[h] = p
 
-    for (h, hashedPaths) in hashes.items():
-        if len(hashedPaths) > 1:
-            for p in hashedPaths[1:]:
+    for (h, hashed_paths) in hashes.items():
+        if len(hashed_paths) > 1:
+            for p in hashed_paths[1:]:
                 os.remove(p)
 
     frames = sorted(glob.glob(os.path.join(paths, '*.png')))