Get style of the layer using Arcpy

[PhongTrần]

Hello,

I am trying to extract the style from the selected layer using Arcpy; but, it seems like there are no properties like color, size, font, etc,...

I run this code on the Python console in ArcMap:

mxd = arcpy.mapping.MapDocument("CURRENT")
layers = arcpy.mapping.ListLayers(mxd)

exampleLayer = layers[0] # This is Feature layer
# I want to get properties like color, size,... from the layer
# But it is not supported

I am hoping someone can help me out! 

Many thank!

[jcarlson]

Refer to the arcpy documentation for the Layer class. You'll see that by calling various properties, like exampleLayer.symbology and exampleLayer.symbologyType, you can access the layer's properties you're looking for.

[PhongTrần]

Thanks for your quick response, but I have tried it before.

In my case, the exampleLayer.symbology is UniqueValuesSymbology . It has properties like description, labels, value, and the value field. But what I want is properties like color, size, font,...

[DanPatterson · Accepted solution]

It won't be easy if at all.... here is the path to follow in the help

UniqueValueRenderer—ArcGIS Pro | Documentation

Item—ArcGIS Pro | Documentation

Symbol—ArcGIS Pro | Documentation

[PhongTrần · Accepted solution]

Thanks for your help, it looks like I have to use arcpy.mp (Python 3) instead of arcpy.mapping (Python 2) to read these properties like color, size, or font.

It means I have to use ArcGIS Pro instead of ArcGIS Desktop because of this 

[DanPatterson]

Thats right... CIM has only been recently introduced and not backported to ArcMap.

Time to move on, python 2.7 is done in any event and ArcMap will be terminal soon 😉