Update app.py

app.py

@@ -119,9 +119,10 @@ def test(input_json):
     df_art_matrix = pd.DataFrame(art).T
     df_art_matrix = df_art_matrix.round(0).astype(int)    
 
+    """
     if df_art_matrix.empty():
         print("transport matrix is empty")
-    
+    """
     
     # create a mask based on the matrix size and ids, crop activity nodes to the mask
     mask_connected = df_matrix.index.tolist()