## namespace_uri property


Returns the namespace URI of the element, or null if the element is not in a namespace.

### Remarks 


Reference:

[DOM Standard](https://dom.spec.whatwg.org/#dom-element-namespaceuri).
### Definition:
```python
@property
def namespace_uri(self):
    ...
@namespace_uri.setter
def namespace_uri(self, value):
    ...
```

### See Also
* module [`aspose.html.dom`](../../)
* class [`Node`](/html/python-net/aspose.html.dom/node)