Update app.py

app.py

@@ -93,7 +93,7 @@ def _get_args():
                         help='Create a publicly shareable link for the interface.')
     parser.add_argument('--inbrowser', action='store_true', default=False,
                         help='Automatically launch the interface in a new tab on the default browser.')
-    parser.add_argument('--server-port', type=int, default=7860, help='Demo server port.')
+    parser.add_argument('--server-port', type=int, help='Demo server port.')
     parser.add_argument('--server-name', type=str, default='127.0.0.1', help='Demo server name.')
 
     args = parser.parse_args()