https://community.esri.com/t5/python-questions/need-some-python-to-add-a-suffix-of-old-to-all/m-p/1542983#M72945 <P>I need to rename up to 100 features which are a mixture of tables &amp; poly's &amp; lines to add the suffix _OLD, &amp; then _NEW &amp; then to remove the suffix altogether as part of renaming of features when importing new data.</P><P>I've had a go at some code but get the attached error - any ideas?</P><LI-CODE lang="python">import arcpy # Set the workspace to your enterprise geodatabase arcpy.env.workspace = "Path to SDE" # List all feature classes and tables in the geodatabase datasets = arcpy.ListFeatureClasses() + arcpy.ListTables() # Loop through each dataset and rename it for dataset in datasets: new_name = f"{dataset}_OLD" arcpy.management.Rename(dataset, new_name) print("All items have been renamed with the suffix '_OLD'.") Traceback (most recent call last): File "&lt;string&gt;", line 12, in &lt;module&gt; File "C:\Program Files\ArcGIS\Pro\Resources\ArcPy\arcpy\management.py", line 7253, in Rename raise e File "C:\Program Files\ArcGIS\Pro\Resources\ArcPy\arcpy\management.py", line 7250, in Rename retval = convertArcObjectToPythonObject(gp.Rename_management(*gp_fixargs((in_data, out_data, data_type), True))) File "C:\Program Files\ArcGIS\Pro\Resources\ArcPy\arcpy\geoprocessing\_base.py", line 520, in &lt;lambda&gt; return lambda *args: val(*gp_fixargs(args, True)) arcgisscripting.ExecuteError: ERROR 160068: The dataset name is invalid. Failed to execute (Rename).</LI-CODE><P>&nbsp;</P> Thu, 26 Sep 2024 10:44:19 GMT AndrewReynoldsDevon 2024-09-26T10:44:19Z https://community.esri.com/t5/python-questions/need-some-python-to-add-a-suffix-of-old-to-all/m-p/1542983#M72945 <P>I need to rename up to 100 features which are a mixture of tables &amp; poly's &amp; lines to add the suffix _OLD, &amp; then _NEW &amp; then to remove the suffix altogether as part of renaming of features when importing new data.</P><P>I've had a go at some code but get the attached error - any ideas?</P><LI-CODE lang="python">import arcpy # Set the workspace to your enterprise geodatabase arcpy.env.workspace = "Path to SDE" # List all feature classes and tables in the geodatabase datasets = arcpy.ListFeatureClasses() + arcpy.ListTables() # Loop through each dataset and rename it for dataset in datasets: new_name = f"{dataset}_OLD" arcpy.management.Rename(dataset, new_name) print("All items have been renamed with the suffix '_OLD'.") Traceback (most recent call last): File "&lt;string&gt;", line 12, in &lt;module&gt; File "C:\Program Files\ArcGIS\Pro\Resources\ArcPy\arcpy\management.py", line 7253, in Rename raise e File "C:\Program Files\ArcGIS\Pro\Resources\ArcPy\arcpy\management.py", line 7250, in Rename retval = convertArcObjectToPythonObject(gp.Rename_management(*gp_fixargs((in_data, out_data, data_type), True))) File "C:\Program Files\ArcGIS\Pro\Resources\ArcPy\arcpy\geoprocessing\_base.py", line 520, in &lt;lambda&gt; return lambda *args: val(*gp_fixargs(args, True)) arcgisscripting.ExecuteError: ERROR 160068: The dataset name is invalid. Failed to execute (Rename).</LI-CODE><P>&nbsp;</P> Thu, 26 Sep 2024 10:44:19 GMT https://community.esri.com/t5/python-questions/need-some-python-to-add-a-suffix-of-old-to-all/m-p/1542983#M72945 AndrewReynoldsDevon 2024-09-26T10:44:19Z https://community.esri.com/t5/python-questions/need-some-python-to-add-a-suffix-of-old-to-all/m-p/1543001#M72946 <P><a href="https://community.esri.com/t5/user/viewprofilepage/user-id/551141">@AndrewReynoldsDevon</a>&nbsp;I would add a print statement to see which feature class it's failing on:</P> <LI-CODE lang="python"># Loop through each dataset and rename it for dataset in datasets: print(f"Renaming {dataset}") new_name = f"{dataset}_OLD" arcpy.management.Rename(dataset, new_name)</LI-CODE> Thu, 26 Sep 2024 13:00:54 GMT https://community.esri.com/t5/python-questions/need-some-python-to-add-a-suffix-of-old-to-all/m-p/1543001#M72946 JakeSkinner 2024-09-26T13:00:54Z