Update app.py

app.py

@@ -33,7 +33,8 @@ def load_summarization_model(model_name):
         tokenizer = AutoTokenizer.from_pretrained(model_name)
         config = AutoConfig.from_pretrained(model_name)
 
-        if  max_tokens = config.max_position_embeddings
+        if hasattr(config, 'max_position_embeddings'):
+            max_tokens = config.max_position_embeddings
         elif hasattr(config, 'n_positions'):
             max_tokens = config.n_positions
         elif hasattr(config, 'd_model'):