ArcGIS Python Reclassify Coding Problem-Stop Iteration

Leeyak88 — Mon, 04 May 2026 12:53:47 GMT

Good morning, All

I have an assignment. We will classify watersheds based on the area to perimeter ratio in the huc4.shp shapefile.

In the Contents, right-click the huc4 layer and click Attribute Table. Review the fields of watersheds. Notice that there is a field called SHAPE_Area and a field called SHAPE_Leng.

Task: Write a script in Python that will determine the Class of each polygon by calculating the area to length ratio and grouping into a Class accordingly to the table below. In ArcMap, create a map assigning symbology to the Class as follows.

Area/length Ratio	Class	Symbology
Ratio > 40,000	Low	Green
20,000 < Ratio <= 40,000	Medium	Brown
15,000 < Ratio <= to 20,000	High	Orange
Ratio <= 15,000	Very High	Red

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I wrote a python script. However, it occurs an error ' Stop Iteration'. How to fix it?

Appreciate the solutions.

Re: ArcGIS Python Reclassify Coding Problem-Stop Iteration

DanPatterson — Mon, 04 May 2026 13:17:43 GMT

your last 3 lines need to be indented 4 spaces so that they are within the cursor loop

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ArcGIS Python Reclassify Coding Problem-Stop Iteration

Re: ArcGIS Python Reclassify Coding Problem-Stop Iteration