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Customizing label features using arcpy

Question asked by niklas24 on Apr 2, 2012
Latest reply on Apr 6, 2012 by niklas24
I have a script that creates symbology for a polyline (contours) and then adds it to a .mxd file. My problem is that it picks the ???FontName??? as the default field to label on the map (see attached image) and I want to change it to a different field within the attribute table (???TextString???). I???ve looked at the labelclass object for use in arcpy, and tried to use the script below, but first of all, I???m not even sure the layer I am trying to do this with is supported (it???s a File Geodatabase Feature Class) because whenever I run the script, nothing happens (it runs b/c I get ???script???returned exit code 0??? at the bottom of the PythonWin window.) Does this mean that the layer is not supported and if so, would it be supported if I pull it out of the .gdb? Any help would be greatly appreciated.

import arcpy mxd = arcpy.mapping.MapDocument(r"C:\Project\Project.mxd") for lyr in arcpy.mapping.ListLayers(mxd):     if lyr.supports("LABELCLASSES"):         if lyr.showLabels:             print "Layer name: " +             for lblClass in lyr.labelClasses:                 if lblClass.showClassLabels:                     print "    Class Name:  " + lblClass.className                     print "    Expression:  " + lblClass.expression                     print "    SQL Query:   " + lblClass.SQLQuery