return None from extractor if no attention layers

nopeanuts · Jan 29, 2022 · 25b3842 · 25b3842
1 parent 64a07f5
commit 25b3842
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Showing 2 changed files with 2 additions and 2 deletions.
diff --git a/setup.py b/setup.py
@@ -3,7 +3,7 @@
 setup(
   name = 'vit-pytorch',
   packages = find_packages(exclude=['examples']),
-  version = '0.26.5',
+  version = '0.26.6',
   license='MIT',
   description = 'Vision Transformer (ViT) - Pytorch',
   author = 'Phil Wang',

diff --git a/vit_pytorch/recorder.py b/vit_pytorch/recorder.py
@@ -55,5 +55,5 @@ def forward(self, img):
         target_device = self.device if self.device is not None else img.device
         recordings = tuple(map(lambda t: t.to(target_device), self.recordings))
 
-        attns = torch.stack(recordings, dim = 1)
+        attns = torch.stack(recordings, dim = 1) if len(recordings) > 0 else None
         return pred, attns