topic Re: Attempting to use showLabels script within a model... in Python Questions

Attempting to use showLabels script within a model...

CraigMcDade — Tue, 19 Feb 2013 17:25:15 GMT

I'm attempting to use a small script within my mxd (will later attach to a model) that will turn the labels on for a layer. My code is essentially straight from the Resource Center:

import arcpy mxd = arcpy.mapping.MapDocument(r"C:\path\to\my.mxd") for lyr in arcpy.mapping.ListLayers(mxd):   if lyr.description == "Layer Name":     lyr.showLabels = True del mxd arcpy.RefreshTOC() arcpy.RefreshActiveView()

I am running it with the mxd open from the python window. It looks like it is working because the map does refresh but the labels are not turning on.

Re: Attempting to use showLabels script within a model...

JeffMoulds — Tue, 19 Feb 2013 21:45:43 GMT

If you want to see the result of scripts run in the Python Window in ArcMap reflected in the current map, reference the map document like this:

mxd = arcpy.mapping.MapDocument('current')

That should do what you want.

Re: Attempting to use showLabels script within a model...

CraigMcDade — Sat, 11 Dec 2021 16:38:25 GMT

If you want to see the result of scripts run in the Python Window in ArcMap reflected in the current map, reference the map document like this:
mxd = arcpy.mapping.MapDocument('current')
That should do what you want.

Thanks. Helped point me in the right direction.

I wound up with:

import arcpy
... mxd = arcpy.mapping.MapDocument("CURRENT") 
... layer = arcpy.mapping.ListLayers(mxd, "")[0] 
... if layer.supports("LABELCLASSES"):
...     for lblclass in layer.labelClasses:
...         lblclass.showClassLabels = True
... lblclass.expression = " [PARCELID]"
... layer.showLabels = True
... arcpy.RefreshActiveView()