topic Re: autoIncrement block not working within a Python Toolbox? in Python Questions

autoIncrement block not working within a Python Toolbox?

DPG — Sat, 21 May 2022 23:24:21 GMT

Hey guys. I am creating a python toolbox that assigns selected polygons in a shapefile a unique id. This id features a section of string followed by a sequential ID. However, whenever I insert the following code block for autoIncrement into my script, the tool will no longer launch. This is the autoincrement block I have taken from ArcGIS Resources:

rec = 0 def autoIncrement(): global rec pStart = 1 #adjust start value, if req'd pInterval = 1 #adjust interval value, if req'd if (rec == 0): rec = pStart else: rec = rec + pInterval return rec

I am placing it in the " def execute(self, parameters, messages):" section of the python toolbox template.

Any ideas as to why this is causing my script to fail? Thank you!

Re: autoIncrement block not working within a Python Toolbox?

DonMorrison1 — Sat, 21 May 2022 23:51:25 GMT

It would be most helpful if you could post the error message, as well as the complete python file. I don't think there is anything wrong with the snippet you posted so there must be something else. Thanks

Re: autoIncrement block not working within a Python Toolbox?

DPG — Sat, 21 May 2022 23:54:04 GMT

I'm afraid there is no error message. Where I can usually select the script (seen here as "Tool")...

... After pasting in that code block into the script, the option disappears as shown here:...

Re: autoIncrement block not working within a Python Toolbox?

DonMorrison1 — Sun, 22 May 2022 00:09:09 GMT

If you right click on TestToolbox.pyt do you get an option to "Check Syntax"?

Re: autoIncrement block not working within a Python Toolbox?

DPG — Sun, 22 May 2022 00:23:03 GMT

Here's the error:

For context, here's this part of the code:

def execute(self, parameters, messages): # Sequential Formula rec = 0 def autoIncrement(): global rec pStart = 1 #adjust start value, if req'd pInterval = 1 #adjust interval value, if req'd if (rec == 0): rec = pStart else: rec = rec + pInterval return rec

Apologies for the lack of clarity. Line 112 is line 12 in my pasted code.

Re: autoIncrement block not working within a Python Toolbox?

DonMorrison1 — Sun, 22 May 2022 00:56:03 GMT

Ah - now I see. Lines 12 and 13 are indented incorrectly.

Re: autoIncrement block not working within a Python Toolbox?

DPG — Sun, 22 May 2022 01:03:18 GMT

Wow, how foolish of me. Thank you! Think I've been staring at code for too long.