# install_extras_command

> **Function** in `deepagents_code`

📖 [View in docs](https://reference.langchain.com/python/deepagents-code/update_check/install_extras_command)

Return the install-script command that installs dcode extras.

## Signature

```python
install_extras_command(
    extras: Iterable[str],
) -> str
```

## Parameters

| Name | Type | Required | Description |
|------|------|----------|-------------|
| `extras` | `Iterable[str]` | Yes | Extra names to include in the tool reinstall. Validated by `_dcode_extras_requirement`, which raises `ValueError` on any name that fails PEP 508 validation. |

## Returns

`str`

Shell command string suitable for display in error messages.

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[View source on GitHub](https://github.com/langchain-ai/deepagents/blob/3812967c84d90619848f3185f22470204fc88bd8/libs/code/deepagents_code/update_check.py#L3551)