> ## 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.

# atoti.NaturalOrder

### *final class* atoti.NaturalOrder

Ascending or descending natural order.

### Example

```pycon theme={"languages":{"custom":["/engine/python-sdk/0.9/languages/pycon.tmLanguage.json"]}}
>>> df = pd.DataFrame(
...     {
...         "Date": ["2021-05-19", "2021-05-20"],
...         "Product": ["TV", "Smartphone"],
...         "Quantity": [12, 18],
...     }
... )
>>> table = session.read_pandas(df, table_name="Sales")
>>> cube = session.create_cube(table)
>>> l, m = cube.levels, cube.measures
>>> l["Date"].order == tt.NaturalOrder()
True
>>> cube.query(m["Quantity.SUM"], levels=[l["Date"]])
           Quantity.SUM
Date
2021-05-19           12
2021-05-20           18
>>> l["Date"].order = tt.NaturalOrder(ascending=False)
>>> cube.query(m["Quantity.SUM"], levels=[l["Date"]])
           Quantity.SUM
Date
2021-05-20           18
2021-05-19           12
```

#### ascending *: [bool](https://docs.python.org/3/library/functions.html#bool)* *= True*