https://community.esri.com/t5/python-questions/how-to-get-current-aprx-in-python-toolbox/m-p/1333575#M68775 <P>That always works for me?</P><P>What part of the pyt is this in?</P> Thu, 28 Sep 2023 20:27:27 GMT AlfredBaldenweck 2023-09-28T20:27:27Z https://community.esri.com/t5/python-questions/how-to-get-current-aprx-in-python-toolbox/m-p/1333568#M68774 <P>What is the best way to get the current APRX in a Python Toolbox (.pyt) tool? I've found that if I use arcpy.mp.ArcGISProject("CURRENT") then the initial loading of the toolboxes will results in the error below. If I right click on the toolbox and refresh then everything works fine until the next time I close and re-open the APRX.</P><LI-CODE lang="markdown">Traceback (most recent call last): File "&lt;string&gt;", line 100, in __init__ File "C:\Program Files\ArcGIS\Pro\Resources\ArcPy\arcpy\_mp.py", line 536, in __init__ self._arc_object = arcgisscripting._mapping.ArcGISProject(*gp_fixargs((aprx_path,), True)) OSError: CURRENT</LI-CODE><P>&nbsp;</P> Thu, 28 Sep 2023 20:12:52 GMT https://community.esri.com/t5/python-questions/how-to-get-current-aprx-in-python-toolbox/m-p/1333568#M68774 JK10 2023-09-28T20:12:52Z https://community.esri.com/t5/python-questions/how-to-get-current-aprx-in-python-toolbox/m-p/1333575#M68775 <P>That always works for me?</P><P>What part of the pyt is this in?</P> Thu, 28 Sep 2023 20:27:27 GMT https://community.esri.com/t5/python-questions/how-to-get-current-aprx-in-python-toolbox/m-p/1333575#M68775 AlfredBaldenweck 2023-09-28T20:27:27Z