# xarray.Dataset.assign_attrs

#### Dataset.assign_attrs(\*args, \*\*kwargs)[[source]](https://github.com/pydata/xarray/blob/main/xarray/core/common.py#L674-L727)

Assign new attrs to this object.

Returns a new object equivalent to `self.attrs.update(*args, **kwargs)`.

* **Parameters:**
  * **\*args** – positional arguments passed into `attrs.update`.
  * **\*\*kwargs** – keyword arguments passed into `attrs.update`.

### Examples

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```pycon
>>> dataset = xr.Dataset({"temperature": [25, 30, 27]})
>>> dataset
<xarray.Dataset> Size: 24B
Dimensions:      (temperature: 3)
Coordinates:
  * temperature  (temperature) int64 24B 25 30 27
Data variables:
    *empty*
```

```pycon
>>> new_dataset = dataset.assign_attrs(
...     units="Celsius", description="Temperature data"
... )
>>> new_dataset
<xarray.Dataset> Size: 24B
Dimensions:      (temperature: 3)
Coordinates:
  * temperature  (temperature) int64 24B 25 30 27
Data variables:
    *empty*
Attributes:
    units:        Celsius
    description:  Temperature data
```

# Attributes of the new dataset

```pycon
>>> new_dataset.attrs
{'units': 'Celsius', 'description': 'Temperature data'}
```

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* **Returns:**
  **assigned** (`same type as caller`) – A new object with the new attrs in addition to the existing data.

#### SEE ALSO
[`Dataset.assign`](xarray.Dataset.assign.html.md#xarray.Dataset.assign)