# libtmux.Session.lock_session

- **Module:** libtmux
- **Package:** libtmux
- **Language:** Python
- **Kind:** method
- **Source:** https://github.com/tmux-python/libtmux/blob/38e368c11117fb4aeb2f082d552cd4f210eae06a/src/libtmux/session.py#L450
- **Page:** https://libtmux.org/en/py/stable/reference/libtmux-session-lock_session/

tmux command: [`lock-session`](/en/tmux/latest/manual/lock-session/)

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

Lock this session via [`$ tmux lock-session`](/en/tmux/latest/manual/lock-session/).

```python
>>> session.lock_session()
```

## In other ports

### Lock every client attached to a session

- Rust: [`session.Session.lock`](/en/rs/latest/reference/session-session-lock/) (method)
- Go: [`tmux.Session.Lock`](/en/go/latest/reference/tmux-session-lock/) (method)
- C#: [`LibTmux.Session.LockAsync`](/en/csharp/latest/reference/libtmux-session-lockasync/) (method)