# ExternalEditorError

> **Class** in `deepagents_code`

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

Raised when an external editor cannot be opened or read.

## Signature

```python
ExternalEditorError()
```

## Extends

- `RuntimeError`

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[View source on GitHub](https://github.com/langchain-ai/deepagents/blob/caaa7e7c12d214afa5cf0a1afed8eb6232aa6f7b/libs/code/deepagents_code/editor.py#L33)