# libtmux.Window.refresh

- **Module:** libtmux
- **Package:** libtmux
- **Language:** Python
- **Kind:** method
- **Source:** https://github.com/tmux-python/libtmux/blob/38e368c11117fb4aeb2f082d552cd4f210eae06a/src/libtmux/window.py#L150
- **Page:** https://libtmux.org/en/py/stable/reference/libtmux-window-refresh/

```
libtmux.Window.refresh(self) -> None
```

Refresh window attributes from tmux.

Scoped to this window's own session ([`list-windows -t @ID`](/en/tmux/latest/manual/list-windows/)), so tmux
-- not libtmux -- decides which session the window belongs to. See
:meth:`Window.from_window_id`.

## Examples

```python
>>> window.refresh()
>>> window.window_id
'@1'
```

## Raises

- [`ValueError`](https://docs.python.org/3/library/exceptions.html#ValueError): When ``window_id`` is unset. Surfaces a clear error under
``python -O``, where an ``assert`` would be stripped.
- [`TmuxObjectDoesNotExist`](/en/py/stable/reference/libtmux-exc-tmuxobjectdoesnotexist/): When the window no longer exists.
- [`LibTmuxException`](/en/py/stable/reference/libtmux-exc-libtmuxexception/): When tmux itself is unreachable.

## In other ports

### Read a window again

- TypeScript: [`window.Window.refreshed`](/en/ts/latest/reference/window-window-refreshed/) (method)
- Rust: [`window.Window.refresh`](/en/rs/latest/reference/window-window-refresh/) (method)
- Go: [`tmux.Window.Refresh`](/en/go/latest/reference/tmux-window-refresh/) (method)
- Java: [`io.github.libtmux.Window.Window.refresh`](/en/java/latest/reference/io-github-libtmux-window-window-refresh/) (method)
- C#: [`LibTmux.Window.RefreshAsync`](/en/csharp/latest/reference/libtmux-window-refreshasync/) (method)
- C++: [`libtmux::Window::refresh`](/en/cxx/latest/reference/libtmux-window-refresh/) (method)