Update app.py

app.py

@@ -37,7 +37,7 @@ dataframes = {
 #df = pd.read_csv("TA_embeddings.csv")
 #df["embedding"]=df["embedding"].apply(eval).apply(np.array)
 def reply(input, dataset_name):
-    
+    global csv_dropdown
     try:
         #if dataset_name not in dataframes:
          #   return "Invalid dataset selected. Please select a valid dataset."