# fiftyone.core.session.notebooks Session notebook handling. Copyright 2017-2026, Voxel51, Inc.
[voxel51.com](https://voxel51.com/)

**Classes:** | [`NotebookCell`](#fiftyone.core.session.notebooks.NotebookCell)(address, height, handle, port, ...) | | |-------------------------------------------------------------------------------------------------------|----| **Functions:** | [`capture`](#fiftyone.core.session.notebooks.capture)(cell, data[, proxy_url]) | | |-------------------------------------------------------------------------------------------------------|-----------------------------------------------------------| | [`display`](#fiftyone.core.session.notebooks.display)(client, cell[, proxy_url, reactivate]) | Displays a running FiftyOne instance. | | [`display_ipython`](#fiftyone.core.session.notebooks.display_ipython)(client, cell[, proxy_url, ...]) | | | [`display_colab`](#fiftyone.core.session.notebooks.display_colab)(client, cell[, proxy_url, ...]) | Display a FiftyOne instance in a Colab output frame. | | [`display_databricks`](#fiftyone.core.session.notebooks.display_databricks)(client, cell[, ...]) | Display a FiftyOne instance in a Databricks output frame. | ### *class* fiftyone.core.session.notebooks.NotebookCell(address: str, height: int, handle: 'IPython.display.DisplayHandle', port: int, subscription: str) Bases: `object` **Attributes:** | [`address`](#fiftyone.core.session.notebooks.NotebookCell.address) | | |------------------------------------------------------------------------------|----| | [`height`](#fiftyone.core.session.notebooks.NotebookCell.height) | | | [`handle`](#fiftyone.core.session.notebooks.NotebookCell.handle) | | | [`port`](#fiftyone.core.session.notebooks.NotebookCell.port) | | | [`subscription`](#fiftyone.core.session.notebooks.NotebookCell.subscription) | | #### address *: str* #### height *: int* #### handle *: DisplayHandle* #### port *: int* #### subscription *: str* ### fiftyone.core.session.notebooks.capture(cell: [NotebookCell](#fiftyone.core.session.notebooks.NotebookCell), data: [CaptureNotebookCell](fiftyone.core.session.events.md#fiftyone.core.session.events.CaptureNotebookCell), proxy_url: str = None) → None ### fiftyone.core.session.notebooks.display(client: [Client](fiftyone.core.session.client.md#fiftyone.core.session.client.Client), cell: [NotebookCell](#fiftyone.core.session.notebooks.NotebookCell), proxy_url: str = None, reactivate: [bool](fiftyone.core.stages.md#fiftyone.core.stages.Exists.bool) = False) → None Displays a running FiftyOne instance. ### fiftyone.core.session.notebooks.display_ipython(client: [Client](fiftyone.core.session.client.md#fiftyone.core.session.client.Client), cell: [NotebookCell](#fiftyone.core.session.notebooks.NotebookCell), proxy_url: str = None, reactivate: [bool](fiftyone.core.stages.md#fiftyone.core.stages.Exists.bool) = False, \*\*kwargs: Dict[str, str | [bool](fiftyone.core.stages.md#fiftyone.core.stages.Exists.bool)]) → None ### fiftyone.core.session.notebooks.display_colab(client: [Client](fiftyone.core.session.client.md#fiftyone.core.session.client.Client), cell: [NotebookCell](#fiftyone.core.session.notebooks.NotebookCell), proxy_url: str = None, reactivate: [bool](fiftyone.core.stages.md#fiftyone.core.stages.Exists.bool) = False) → None Display a FiftyOne instance in a Colab output frame. The Colab VM is not directly exposed to the network, so the Colab runtime provides a service worker tunnel to proxy requests from the end user’s browser through to servers running on the Colab VM: the output frame may issue requests to [https://localhost](https://localhost): (HTTPS only), which will be forwarded to the specified port on the VM. It does not suffice to create an `iframe` and let the service worker redirect its traffic (`