In GP-tools written in C# (ArcObjects) we can listen for the Cancel-event and react on that. I wonder if there is anything similar in Python GP-tools applying arcpy. I googled that issue and the only thing I found was the Cancel-method on the Result-Object (so that you can ask the state of the result of a GP-tool, i.e. if it was canceled). I'm aware that you can cancel GP-tools running in the background in the Result Window, but this Cancel-event is catched by the system and therefore the developer or the GP-tool cannot react on that. Further I tried to catch the arcpy.ExecuteError within the canceled Python GP-script with the following statement, but no exception was catched: try: for workspace in workspace_list: counter += 1 msg = str.format("{0}.workspace: {1} ", counter, workspace) whole_msg += msg arcpy.AddMessage(msg) except arcpy.ExecuteError: msg = str.format("arcpy.ExecuteError: {0}", arcpy.GetMessages()) arcpy.AddError(msg) # Return any other type of error except: msg = str.format("Non-tool error occurred: {0}", arcpy.GetMessages()) arcpy.AddError(msg) Thank You in advance! Did you ever get a solution to your problem. If ou did kindly assist by posting it here. I am in a similar dilemma Thank YOU...in advance 🙂
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