Update app.py

app.py

@@ -22,6 +22,7 @@ def _fetch_url(*args, **kwargs):
         except requests.RequestException as e:
             if response.status_code in {429, 500, 502, 503, 504}:
                 delay = min(2 ** i, 60)
+                gr.Warning(f"Retrying in {delay:.2f}s..")
                 time.sleep(delay)
             else:
                 return None