Configuring Popups with Python CIM

[DestinyKelley1]

I am trying to automate configuring popups with Python CIM for many points in ArcGIS Pro. I only want one field displayed, and not all of them, when I click the point with the info button.  That's it.  I am new to using Python CIM with arcpy.

I tried the following code and it did not work:

import arcpy

p = arcpy.mp.ArcGISProject('current')
m = p.listMaps()[0]
l = m.listLayers()[0]
l_cim = l.getDefinition('V2')

for l in m.listLayers():
    l_cim = l.getDefinition('V2')
    MediaObj = arcpy.cim.CreateCIMObjectFromClassName('CIMTableMediaInfo', 'V2')
    MediaObj.fields = ["Field"]
    l_cim.popupInfo = MediaObj
    l.setDefinition(l_cim)

Please let me know where my understanding has failed.

[JohannesLindner · Accepted solution]

PopupInfo has a list of TableMediaInfo objects.

l_cim = l.getDefinition("V2")

media = arcpy.cim.CIMPopup.CIMTableMediaInfo()
media.fields = ["Field"]
popup = arcpy.cim.CIMPopup.CIMPopupInfo()
popup.mediaInfos = [media]
l_cim.popupInfo = popup

l.setDefinition(l_cim)

[DestinyKelley1]

Thank you, Johannes! The code worked!

How do I get the list of TableMediaInfo objects from PopupInfo?

[JohannesLindner]

cim.popupInfo.mediaInfos

[John_Medema]

I have leveraged some of this code to modify the l_cim.popupInfo.fieldDescriptions.   This seems to be corrupting my map document.  Has this ben observed in similar efforts?