# libtmux.Session.active_window

- **Module:** libtmux
- **Package:** libtmux
- **Language:** Python
- **Kind:** property
- **Source:** https://github.com/tmux-python/libtmux/blob/38e368c11117fb4aeb2f082d552cd4f210eae06a/src/libtmux/session.py#L604
- **Page:** https://libtmux.org/en/py/stable/reference/libtmux-session-active_window/

```
libtmux.Session.active_window(self) -> Window
```

Return the active :class:`Window` object.

## In other ports

### The session's active window

- TypeScript: [`session.Session.activeWindow`](/en/ts/latest/reference/session-session-activewindow/) (method)
- Rust: [`session.Session.active_window`](/en/rs/latest/reference/session-session-active_window/) (method)
- Go: [`tmux.Session.ActiveWindow`](/en/go/latest/reference/tmux-session-activewindow/) (method)
- Java: [`io.github.libtmux.Session.Session.activeWindow`](/en/java/latest/reference/io-github-libtmux-session-session-activewindow/) (method)
- C#: [`LibTmux.Session.ActiveWindow`](/en/csharp/latest/reference/libtmux-session-activewindow/) (property)
- C++: [`libtmux::Session::active_window`](/en/cxx/latest/reference/libtmux-session-active_window/) (method)