# How to Show a vtkMultiBlockDataset with the Paraview Python wrapper

**URL:** https://discourse.paraview.org/t/how-to-show-a-vtkmultiblockdataset-with-the-paraview-python-wrapper/9012
**Category:** Web Support
**Created:** [February 18, 2022, 2:52pm UTC](https://discourse.paraview.org/t/how-to-show-a-vtkmultiblockdataset-with-the-paraview-python-wrapper/9012 "2022-02-18T14:52:11Z")
**Posts on this page:** 3
**Page:** 1

<div class="post-metadata">

### Author: ![joaomlap](https://discourse.paraview.org/user_avatar/discourse.paraview.org/joaomlap/32/6609_2.png) [@joaomlap](https://discourse.paraview.org/u/joaomlap)
#### Post date: [February 18, 2022, 2:52pm UTC](https://discourse.paraview.org/t/how-to-show-a-vtkmultiblockdataset-with-the-paraview-python-wrapper/9012/1 "2022-02-18T14:52:12Z")

</div>

Hi I recently posted in “Support” but I think this belongs in Web since I am using Paraview as a Remote Server,

I am trying to use `paraview.simple` to render a vtkMultiBlockDataset.  
If I try to do:

`paraview.simple.Show(multiblock)`

I get the following error:  
`RuntimeError: Cannot show a sink i.e. algorithm with no output.`

I understand I need to wrap the vtkMultiBlockDataset in some kind of wrapper but I can’t find any documentation on how to do this. Can anyone help me understand how to make this work and where to find this information?

Thank you very much.

---

<div class="post-metadata">

### Author: ![mwestphal](https://discourse.paraview.org/user_avatar/discourse.paraview.org/mwestphal/32/17_2.png) [@mwestphal](https://discourse.paraview.org/u/mwestphal)
#### Post date: [February 23, 2022, 10:55am UTC](https://discourse.paraview.org/t/how-to-show-a-vtkmultiblockdataset-with-the-paraview-python-wrapper/9012/2 "2022-02-23T10:55:19Z")

</div>

> [@joaomlap](#):
>
> Hi I recently posted in “Support” but I think this belongs in Web since I am using Paraview as a Remote Server,

No it does not. closing this.

---

<div class="post-metadata">

### Author: ![mwestphal](https://discourse.paraview.org/user_avatar/discourse.paraview.org/mwestphal/32/17_2.png) [@mwestphal](https://discourse.paraview.org/u/mwestphal)
#### Post date: [February 23, 2022, 10:55am UTC](https://discourse.paraview.org/t/how-to-show-a-vtkmultiblockdataset-with-the-paraview-python-wrapper/9012/3 "2022-02-23T10:55:25Z")

</div>