# Pulling data from a row in a table, strange error occurs

**URL:** <https://forum.inductiveautomation.com/t/pulling-data-from-a-row-in-a-table-strange-error-occurs/58248>\
**Category:** Ignition\
**Tags:** ignition80, vision, scripting\
**Created:** [April 9, 2022, 6:00am UTC](https://forum.inductiveautomation.com/t/pulling-data-from-a-row-in-a-table-strange-error-occurs/58248 "2022-04-09T06:00:02Z")\
**Posts on this page:** 2\
**Page:** 1

<div class="post-metadata">

**Author:** ![Tyler\_Muckley](https://avatars.discourse-cdn.com/v4/letter/t/b4bc9f/32.png) [@Tyler\_Muckley](https://forum.inductiveautomation.com/u/Tyler_Muckley)\
**Post date:** [April 9, 2022, 6:00am UTC](https://forum.inductiveautomation.com/t/pulling-data-from-a-row-in-a-table-strange-error-occurs/58248/1 "2022-04-09T06:00:02Z")

</div>

Hello again friends,

I am coming to you today with yet another issue. I am trying to assign a cell from a pydataset to a variable so I can write that to another table. Currently when I am trying to do that I get a strange error:

Traceback (most recent call last):  
File “event:actionPerformed”, line 11, in   
AttributeError: write-only attr: data

Here is my code:

```auto
inputTable = event.source.parent.getComponent('inputTable').data
inputTablePySet = system.dataset.toPyDataSet(inputTable)
outputTable = event.source.parent.getComponent('outputTable').data
componentID = event.source.parent.getComponent('inputTextField').text
dataList = []
updatedTable = ''

for row in inputTablePySet:
	params = inputTablePySet.data.getValueAt(row, 'Scanned In')
	dataList.append(runNamedQuery(ScanSearch, params))
	updatedTable = system.dataset.addRow(outputTable, dataList)
	outputTable.data = updatedTable

```

And here is the full error code:

```auto
Traceback (most recent call last):
  File "<event:actionPerformed>", line 11, in <module>
AttributeError: write-only attr: data

	at org.python.core.Py.AttributeError(Py.java:207)
	at org.python.core.PyBeanProperty._doget(PyBeanProperty.java:28)
	at org.python.core.PyObject._doget(PyObject.java:1173)
	at org.python.core.PyObject. __get__ (PyObject.java:3816)
	at org.python.core.PyObject.object ___findattr__ (PyObject.java:3848)
	at org.python.core.PyObject. __findattr_ex__ (PyObject.java:989)
	at org.python.core.PyObject. __getattr__ (PyObject.java:1025)
	at org.python.pycode._pyx100.f$0(<event:actionPerformed>:10)
	at org.python.pycode._pyx100.call_function(<event:actionPerformed>)
	at org.python.core.PyTableCode.call(PyTableCode.java:171)
	at org.python.core.PyCode.call(PyCode.java:18)
	at org.python.core.Py.runCode(Py.java:1614)
	at com.inductiveautomation.ignition.common.script.ScriptManager.runCode(ScriptManager.java:799)
	at com.inductiveautomation.factorypmi.application.binding.action.ActionAdapter.runActions(ActionAdapter.java:206)
	at com.inductiveautomation.factorypmi.application.binding.action.ActionAdapter.invoke(ActionAdapter.java:297)
	at com.inductiveautomation.factorypmi.application.binding.action.RelayInvocationHandler.invoke(RelayInvocationHandler.java:57)
	at com.sun.proxy.$Proxy64.actionPerformed(Unknown Source)
	at java.desktop/javax.swing.AbstractButton.fireActionPerformed(Unknown Source)
	at java.desktop/javax.swing.AbstractButton$Handler.actionPerformed(Unknown Source)
	at java.desktop/javax.swing.DefaultButtonModel.fireActionPerformed(Unknown Source)
	at java.desktop/javax.swing.DefaultButtonModel.setPressed(Unknown Source)
	at java.desktop/javax.swing.plaf.basic.BasicButtonListener.mouseReleased(Unknown Source)
	at java.desktop/java.awt.Component.processMouseEvent(Unknown Source)
	at java.desktop/javax.swing.JComponent.processMouseEvent(Unknown Source)
	at java.desktop/java.awt.Component.processEvent(Unknown Source)
	at java.desktop/java.awt.Container.processEvent(Unknown Source)
	at java.desktop/java.awt.Component.dispatchEventImpl(Unknown Source)
	at java.desktop/java.awt.Container.dispatchEventImpl(Unknown Source)
	at java.desktop/java.awt.Component.dispatchEvent(Unknown Source)
	at java.desktop/java.awt.LightweightDispatcher.retargetMouseEvent(Unknown Source)
	at java.desktop/java.awt.LightweightDispatcher.processMouseEvent(Unknown Source)
	at java.desktop/java.awt.LightweightDispatcher.dispatchEvent(Unknown Source)
	at java.desktop/java.awt.Container.dispatchEventImpl(Unknown Source)
	at java.desktop/java.awt.Window.dispatchEventImpl(Unknown Source)
	at java.desktop/java.awt.Component.dispatchEvent(Unknown Source)
	at java.desktop/java.awt.EventQueue.dispatchEventImpl(Unknown Source)
	at java.desktop/java.awt.EventQueue$4.run(Unknown Source)
	at java.desktop/java.awt.EventQueue$4.run(Unknown Source)
	at java.base/java.security.AccessController.doPrivileged(Native Method)
	at java.base/java.security.ProtectionDomain$JavaSecurityAccessImpl.doIntersectionPrivilege(Unknown Source)
	at java.base/java.security.ProtectionDomain$JavaSecurityAccessImpl.doIntersectionPrivilege(Unknown Source)
	at java.desktop/java.awt.EventQueue$5.run(Unknown Source)
	at java.desktop/java.awt.EventQueue$5.run(Unknown Source)
	at java.base/java.security.AccessController.doPrivileged(Native Method)
	at java.base/java.security.ProtectionDomain$JavaSecurityAccessImpl.doIntersectionPrivilege(Unknown Source)
	at java.desktop/java.awt.EventQueue.dispatchEvent(Unknown Source)
	at java.desktop/java.awt.EventDispatchThread.pumpOneEventForFilters(Unknown Source)
	at java.desktop/java.awt.EventDispatchThread.pumpEventsForFilter(Unknown Source)
	at java.desktop/java.awt.EventDispatchThread.pumpEventsForHierarchy(Unknown Source)
	at java.desktop/java.awt.EventDispatchThread.pumpEvents(Unknown Source)
	at java.desktop/java.awt.EventDispatchThread.pumpEvents(Unknown Source)
	at java.desktop/java.awt.EventDispatchThread.run(Unknown Source)

Ignition v8.1.7 (b2021060314)
Java: Azul Systems, Inc. 11.0.11

```

Thanks you Ignition wizards.

Tyler

---

<div class="post-metadata">

**Author:** ![Tyler\_Muckley](https://avatars.discourse-cdn.com/v4/letter/t/b4bc9f/32.png) [@Tyler\_Muckley](https://forum.inductiveautomation.com/u/Tyler_Muckley)\
**Post date:** [April 9, 2022, 7:41am UTC](https://forum.inductiveautomation.com/t/pulling-data-from-a-row-in-a-table-strange-error-occurs/58248/2 "2022-04-09T07:41:23Z")

</div>

Solved my own issue. Don’t use pydatasets when you don’t need to. Makes everything overcomplicated lol.