Arcpy describe().shapeType - interpreter problems

MattRosales — Sat, 11 Dec 2021 16:27:14 GMT

Hi All,

I just migrated from Arc 9.3.1 to Arc 10, and now I'm re-writing my scripts to go along. Something a bit odd, though; in the python console within arc I can get this code to run fine:

searchPath = os.path.abspath(arcpy.GetParameterAsText(0)) #path to search

for root, dirs, files in os.walk(searchPath):
    for f in files:
        if fnmatch.fnmatch(f, searchParam):
            shpType = arcpy.Describe(os.path.join(root, f)).shapeType
            if str(shpType) == "Polyline":
                print "blah blah"

However, when running from within a model, the python interpreter is getting hung up on shapeType, claiming:

DescribeData: Method shapeType does not exist

Any ideas on this?

Cheers,
Matt

Full code:

# Import system modules
import sys, string, os, fnmatch, arcpy

# Get variables from the ArcGUI *must setup the tool properly in Arc*
searchPath = os.path.abspath(arcpy.GetParameterAsText(0)) #path to search
searchParam = arcpy.GetParameterAsText(1) #search paramater - wildcards OK
shapefileType = arcpy.GetParameterAsText(2) #shapefile type: Polyline, Polygon, Point, etc.

# Search function
resultList = [] #The list for collecting results with...
resultString = "" #Blank the results from previous searches
outFilesMV = "" #Blank the results from previous searches
for root, dirs, files in os.walk(searchPath):
 for f in files:
  if fnmatch.fnmatch(f, searchParam):
   shpType = arcpy.Describe(os.path.join(root, f)).shapeType
   if str(shpType) == shapefileType:
    tempString = "'" + os.path.join(root, f) + "'"
    resultList.append(tempString)
    resultList.append(";")
    
resultList.pop() #removes last list value (trailing semicolon)
resultString = "\"" + "".join(resultList) + "\"" #Convert list to a single string
outFilesMV = resultString.replace("\\","\\\\")

# set Arc output:
arcpy.SetParameterAsText(3, outFilesMV)

Re: Arcpy describe().shapeType - interpreter problems

MattRosales — Fri, 19 Nov 2010 20:51:51 GMT

Update - this problem originated by trying to describe() a non-shapefile. The search parameters should include *.shp to avoid this issue. Oops!

topic Arcpy describe().shapeType - interpreter problems in Geoprocessing Questions

Arcpy describe().shapeType - interpreter problems

Re: Arcpy describe().shapeType - interpreter problems