# libtmux.exc.DeprecatedError.__init__

- **Module:** libtmux.exc
- **Package:** libtmux
- **Language:** Python
- **Kind:** method
- **Source:** https://github.com/tmux-python/libtmux/blob/38e368c11117fb4aeb2f082d552cd4f210eae06a/src/libtmux/exc.py#L80
- **Page:** https://libtmux.org/en/py/stable/reference/libtmux-exc-deprecatederror-__init__/

```
libtmux.exc.DeprecatedError.__init__(
    self, deprecated: str, replacement: str, version: str
) -> None
```

## Parameters

- `deprecated` (`str`)
- `replacement` (`str`)
- `version` (`str`)