Hello,
I'm valiantly attempting to teach myself Python scripting, and not enjoying this very much so far... All I am trying to do is import a list file (.csv) that corresponds to a field in a shapefile and batch-process some basic GIS functions in a loop. I cannot figure out how to call up the .csv entry in a list for use in an arcpy command. Forgive me if this is a very basic problem, but I've scoured the web for hours trying to figure this out and am getting nowhere fast.
When one is for-looping with arcpy commands, how in the world do you get Python to accept the value in the loop?? Below I can successfully import the .csv list, get one arcpy command (MakeFeatureLayer_management) to go, but then when I want to insert the first value from the .csv list (in the SelectLayerByAttribute_management command) , nothing I try satisfies Python. What am I doing wrong here?!?
Here's the code:
import csv, arcpy
sheds = csv.reader(open('E:/Weathering_GIS/Sheds.csv','rb'))
from arcpy import env
from arcpy.sa import *
arcpy.CheckOutExtension("Spatial")
env.workspace = 'E:/Weathering_GIS/Working.gdb'
for row in sheds:
print row
arcpy.MakeFeatureLayer_management('E:/Weathering_GIS/Working.gdb/USGS_Points', 'Shedpoints9')
arcpy.SelectLayerByAttribute_management("Shedpoints9", "NEW_SELECTION", "GageCode='"+row.insert) #here's where it's breaking. How can I insert the first of the "sheds"?!?
Thanks,
Ryan