BUG-000151663 for ArcGIS Pro

Bug ID Number	BUG-000151663
Submitted	August 18, 2022
Last Modified	June 5, 2024
Applies to	ArcGIS Pro
Version found	3.0
Operating System	N/A
Operating System Version	N/A
Status	As Designed

Additional Information

Although the keyword 'Current' works the same in the Python window, notebooks, and script tools, the core geoprocessing functions do not return 'arcpy.mp Layer objects'. Instead, it returns 'Result objects', and it is up to the user to use the correct index to return the appropriate object from the result. The code below is modified to return a layer object from the geoprocessing 'Result object', and this works in models, stand-alone scripts, script tools, and the Python window. p = arcpy.mp.ArcGISProject('current') m = p.listMaps('Map')[0] lyr1 = m.listLayers('States_WithRegions')[0] res = arcpy.management.Merge(['States_WithRegions', 'Provinces'], os.path.join(basePath, 'GPSyncLayers.gdb', 'MergeOutputOpt1')) resLyr = m.addDataFromPath(res[0]) Note that the geoprocessing tools run from the Python window or notebooks often automatically add layer results to the table of contents. This is a geoprocessing option that can be configured, but it does not automatically add layers if run from a script tool. This is because script tools are designed to work out of process, even if views are not active to add the output to. Use the logic above to more consistently get the expected results.