> ## Documentation Index
> Fetch the complete documentation index at: https://docs.activeviam.com/llms.txt
> Use this file to discover all available pages before exploring further.

# Dimension.description

<span id="atoti.Dimension.description" />

> *property* Dimension.description: [str](https://docs.python.org/3/library/stdtypes.html#str)

Description of the dimension.

It is displayed in Atoti UI when hovering the corresponding node in the **Data model** tree to help users understand its purpose.

```pycon theme={"languages":{"custom":["/engine/python-sdk/0.9/languages/pycon.tmLanguage.json"]}}
>>> table = session.create_table(
...     "Example", data_types={"Product": "String"}, keys={"Product"}
... )
>>> cube = session.create_cube(table)
>>> dimension = cube.dimensions["Example"]
```

Empty by default:

```pycon theme={"languages":{"custom":["/engine/python-sdk/0.9/languages/pycon.tmLanguage.json"]}}
>>> dimension.description
''
```

Changing the description:

```pycon theme={"languages":{"custom":["/engine/python-sdk/0.9/languages/pycon.tmLanguage.json"]}}
>>> dimension.description = "Information about the products"
>>> dimension.description
'Information about the products'
```

Blank descriptions are normalized to an empty string:

```pycon theme={"languages":{"custom":["/engine/python-sdk/0.9/languages/pycon.tmLanguage.json"]}}
>>> dimension.description = " "
>>> dimension.description
''
```