fix: weights

app.py

@@ -14,7 +14,7 @@ eval_net.trans.gated = True
 eval_net.trans.gated2 = True
 
 def process_image(input_img,score,model_path,gamma=1.0,alpha_s=1.0,alpha_i=1.0):
-    if len(model_path) == 0:
+    if model_path is None:
         return input_img,"Please choose a model weights.","Please choose a model weights."
     torch.set_grad_enabled(False)
     eval_net.load_state_dict(torch.load(os.path.join(directory,model_path), map_location=lambda storage, loc: storage))