Update app.py

app.py

@@ -19,7 +19,7 @@ def offset_calculation(prediction_length, rolling_windows, length):
     row_offset = -1 * prediction_length * rolling_windows
     if abs(row_offset) > 0.95 * length:
         raise gr.Error("Reduce prediction_length * rolling_windows")
-    return row_offset/2
+    return row_offset//2
 
 
 def preprocess(