# libtmux.Session.refresh

- **Module:** libtmux
- **Package:** libtmux
- **Language:** Python
- **Kind:** method
- **Source:** https://github.com/tmux-python/libtmux/blob/38e368c11117fb4aeb2f082d552cd4f210eae06a/src/libtmux/session.py#L134
- **Page:** https://libtmux.org/en/py/stable/reference/libtmux-session-refresh/

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

Refresh session attributes from tmux.

## Raises

- [`ValueError`](https://docs.python.org/3/library/exceptions.html#ValueError): When ``session_id`` is unset. Surfaces a clear error under
``python -O``, where an ``assert`` would be stripped.

## In other ports

### Read a session again

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