topic Re: Delete and Update operations in sequence to be followed in Geodatabase Questions

Delete and Update operations in sequence to be followed

Rohanrajan — Mon, 04 Aug 2025 20:01:07 GMT

Hi,

I have been trying to select a number of features, delete some of them and update the rest. Like

edit = arcpy.da.Editor(workspace)

edit.startEditing(with_undo=True, multiuser_mode=False)

arcpy.AddMessage("Edit Session Started")

logging.info(f"Edit Session Started in : {workspace}")

try:

for id in Ids:

if id != Ids[0]

SearchCuror():

UpdateCursor()

deleteRow()

except arcpy.ExecuteError as e:

arcpy.AddMessage(f"Error: {e}")

for id in Ids:

SearchCuror():

UpdateCursor()

updateRow()

edit.stopOperation()

edit.stopEditing(save_changes=True)

But it encounters an error: Need an edit session

What am I doing wrong

Any advice is much appreciated

Re: Delete and Update operations in sequence to be followed

VinceAngelo — Mon, 04 Aug 2025 20:16:30 GMT

Please edit the question to place the code in a code block (click on "..." then "</>" in the second row of icons).
Reading Python code without indention is nearly impossible.

It's also nearly impossible to debug incomplete code (especially when there are TWO SearchCursor flavors [and arcpy.SearchCursor is deprecated, and should not be used in code written since 2013]).

But you should know that nesting cursors is an antipattern, and the likely cause of your error.

- V

Re: Delete and Update operations in sequence to be followed

DanPatterson — Mon, 04 Aug 2025 20:15:14 GMT

To supplement Vince's suggestion, for the visual

Code formatting ... the Community Version - Esri Community

Re: Delete and Update operations in sequence to be followed

CodyPatterson — Mon, 04 Aug 2025 20:37:49 GMT

Hey @Rohanrajan

This is a longshot, but it appears you're not performing an edit.startOperation() before starting the edit session.

Cody