Update app.py

app.py

@@ -30,7 +30,7 @@ def translate(text):
             'length_penalty': 0.0,  # don't encourage longer or shorter output,
             'num_return_sequences': 1,
             'num_beams':1,
-            'forced_bos_token_id': tokenizer.lang_code_to_id[tgt]
+            'forced_bos_token_id': tokenizer.lang_code_to_id["tl"]
         }