Hello everybody
I was trying to start a code to analyze some measure points in different scales and exponents, when I found an extrange error and I don't understand why it happen.
Ther error says:.
ERROR 999999: Error executing function.
Failed to execute (AddField).
And it only happen when I put AddField function into a FOR statement and not out of it.
I'd realy like to know why it is, any help will welcome!
import arcpy
from arcpy import env
from arcpy.sa import *
import math
from math import sqrt
import numpy
from numpy import *
import shapefile
try:
# Check out any necessary licenses
arcpy.CheckOutExtension("spatial")
env.workspace = "D:/Users/"
inFeatures=["WS.shp","malla.shp"]
outPoints="WSTT.shp"
Malla="malla.shp"
Calcs="calcs.shp"
arcpy.Intersect_analysis(inFeatures, outPoints, "", "", "point")
arcpy.Copy_management(Malla, Calcs, "")
arcpy.JoinField_management(Calcs, "FID", outPoints, "FID_malla_", "Pp")
arcpy.Delete_management(outPoints)
sf = shapefile.Reader(Calcs)
fields=sf.fields
records = sf.records()
ppp=[]
lg=len(records)-1
for i in range(0,lg):
pp=records[2]
ppp.append(pp)
ppp=numpy.array(ppp)
Nt=sum(ppp)
print Nt
for L in range(0,4):
sc=int(2**L)
scn="sc"+str(sc)
Ppsc="Ppsc"+str(sc)
Pi="Pi_"+str(sc)
########### Ni(L) #################
arcpy.AddField_management(Calcs, Ppsc, "FLOAT", "10", "6", "", "", "NON_NULLABLE", "NON_REQUIRED", "")
arcpy.CalculateField_management(Calcs, Ppsc, '!Pp!', "PYTHON","")
arcpy.AddField_management(Calcs, scn, "text", "", "", "", "", "NON_NULLABLE", "NON_REQUIRED", "")
arcpy.CalculateField_management(Calcs, scn, 'str(int(math.ceil(float(!x!)/sc)))+","+str(int(math.ceil(float(!y!)/sc)))', "PYTHON","")
outDissolve="Pp_sc"+str(sc)+".shp"
dissolveField = [scn]
statistics=Ppsc+" SUM"
arcpy.Dissolve_management(Calcs, outDissolve, dissolveField, statistics,"MULTI_PART", "DISSOLVE_LINES")
print L
except Exception, e:
print arcpy.GetMessages()
Thanks in advance
Mariella
