topic Re: Why is my script running fine with one feature class but does not run correctly with multiple feature classes? in Python Questions

Why is my script running fine with one feature class but does not run correctly with multiple feature classes?

TravisPreston2 — Tue, 25 Oct 2016 21:56:16 GMT

The purpose of the script is to count the number of single family homes within each "FireBoxMap" feature class. When I specify a single feature class in line 10 the script runs fine. When I change the feature class to "FireBoxMap*" to run through all of the feature classes it does not populate the desired information. I am not sure what I am doing wrong.

Thank You

Re: Why is my script running fine with one feature class but does not run correctly with multiple feature classes?

LesiMai3 — Tue, 25 Oct 2016 22:40:45 GMT

Travis,

You may want to move lines 22-24 in front of the for statement and wrap lines 26-37 inside the for statement.

Lesi

Re: Why is my script running fine with one feature class but does not run correctly with multiple feature classes?

JonathanQuinn — Wed, 26 Oct 2016 00:55:40 GMT

If you print fcBoxZones after running arcpy.ListFeatureClasses, does the list appear correct?

Re: Why is my script running fine with one feature class but does not run correctly with multiple feature classes?

LukeWebb — Wed, 26 Oct 2016 13:45:57 GMT

The question is already answered, but I will write a bit more detail to hopefully help you understand:

You have a "For" Loop, but inside the loop you only have the lines of code:

print fc
# Add two fields to hold the results
arcpy.AddField_management (fc, "SFCount", "LONG")
arcpy.AddField_management (fc, "MFCOUNT", "LONG")

The rest of the code is not indented, so does not get included in the loop!

So your script currently works as follows:

For each FC:

print FC

add fields to FC

On the last FC in the loop only:

selection + calculate

To fix, simply indent all code after your "For" loop