Runtime error <type 'exceptions.TypeError'>: 'unicode' object is not callable

Question

I'm working on a script to replace a layer datasource, and I'm getting an error I cannot figure out.

When I run the following code in a python window inside ArcMap, I get a "Runtime error : 'unicode' object is not callable"

import arcpy
mxd = arcpy.mapping.MapDocument ("CURRENT")
for lyr in arcpy.mapping.ListLayers(mxd):
     if lyr.supports("DATASOURCE"):
         if lyr.dataSource (r"N:\3_PLANNING\6_GIS\GIS Data\INDIANA GIS\Indiana_County.mdb\Boundaries\Indianacounty_shp"):
             lyr.replaceDataSource (r"N:\3_PLANNING\6_GIS\GIS Data\Indiana_County_Database_201201.gdb", "FILEGDB_WORKSPACE", r"N:\3_PLANNING\6_GIS\GIS Data\Indiana_County_Database_201201.gdb\Boundaries\County_Boundary")

Problem is, I'm not very good at python yet, and I'm not sure what the unicode object is that the error is referring to.

Answer 1

Turns out the issue was:

if lyr.dataSource (r"N:\3_PLANNING\6_GIS\GIS Data\INDIANA GIS\Indiana_County.mdb\Boundaries\Indianacounty_shp"):

it should be:

if lyr.dataSource == "N:\3_PLANNING\6_GIS\GIS Data\INDIANA GIS\Indiana_County.mdb\Boundaries\Indianacounty_shp":