Update app.py

app.py

@@ -187,6 +187,7 @@ def NER(sentence, mode):
             json_short = distill_entities(output_list)
             return json_short
 
+BASE_DIR = os.path.expanduser("~/.sinatools")
 
 # Paths expected by sinatools
 RELATION_MODEL_DIR = os.path.join(BASE_DIR, "relation_model")