Fixed handling

app.py

@@ -8,7 +8,7 @@ classifier = pipeline(model=checkpoint,
                       task="zero-shot-image-classification")
 
 def shot(image, labels_text):
-    if len(labels_text):
+    if labels_text:
         labels = labels_text.split(";")
     else:
         labels = ['A page of printed text',