# How to read the output of a Action Graph Node in python

**URL:** <https://forums.developer.nvidia.com/t/how-to-read-the-output-of-a-action-graph-node-in-python/252084>\
**Category:** Isaac Sim\
**Created:** [May 3, 2023, 1:09pm UTC](https://forums.developer.nvidia.com/t/how-to-read-the-output-of-a-action-graph-node-in-python/252084 "2023-05-03T13:09:34Z")\
**Posts on this page:** 3\
**Page:** 1

<div class="post-metadata">

**Author:** ![federico.domeniconi](https://developer.download.nvidia.com/images/forums/profile-default-devtalk-84.png) [@federico.domeniconi](https://forums.developer.nvidia.com/u/federico.domeniconi)\
**Post date:** [May 3, 2023, 1:09pm UTC](https://forums.developer.nvidia.com/t/how-to-read-the-output-of-a-action-graph-node-in-python/252084/1 "2023-05-03T13:09:34Z")

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I have an Action Graph with some nodes and I want to read the output of a node from python. How can I do it?

I use this code:

```auto
import omni.isaac.core.utils.prims as prims_utils
value = prims_utils.get_prim_property(prim_path="/World/ActionGraph_01/multiply_01", property_name="outputs:product")

```

but `value` is always `None`.

I see the property name by hoovering with the mouse and I can see this property in the Raw USD properties. How can I can retrieve this value from python?

![image](https://global.discourse-cdn.com/nvidia/original/3X/7/a/7a6c20431baaf738b85e8b6cfd687a350bbda44f.png)

![image](https://global.discourse-cdn.com/nvidia/original/3X/0/c/0c5eabf0fe1def7807f773db4553779f35092b7d.png)

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<div class="post-metadata">

**Author:** ![mati-nvidia](https://sea2.discourse-cdn.com/nvidia/user_avatar/forums.developer.nvidia.com/mati-nvidia/32/164558_2.png) [@mati-nvidia](https://forums.developer.nvidia.com/u/mati-nvidia)\
**Post date:** [May 5, 2023, 6:22pm UTC](https://forums.developer.nvidia.com/t/how-to-read-the-output-of-a-action-graph-node-in-python/252084/2 "2023-05-05T18:22:17Z")

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Hi @federico.domeniconi. I’ve moved this to the Isaac Sim forum as it looks like you’re using the Isaac API for this.

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<div class="post-metadata">

**Author:** ![FooTheBar](https://developer.download.nvidia.com/images/forums/profile-default-devtalk-84.png) [@FooTheBar](https://forums.developer.nvidia.com/u/FooTheBar)\
**Post date:** [February 7, 2025, 11:44am UTC](https://forums.developer.nvidia.com/t/how-to-read-the-output-of-a-action-graph-node-in-python/252084/6 "2025-02-07T11:44:59Z")

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If someone else finds this question:

[https://docs.omniverse.nvidia.com/isaacsim/latest/advanced\_tutorials/tutorial\_advanced\_omnigraph\_scripting.html](https://docs.omniverse.nvidia.com/isaacsim/latest/advanced_tutorials/tutorial_advanced_omnigraph_scripting.html)

```auto
existing_text = og.Controller.attribute("/action_graph/print.inputs:text").get()

print("Existing Text: ", existing_text)

```