ArcPy - Get Layer Data Sources of MXDs

GetLayerDatasources.py

import arcpy, codecs, csv, os

mxd_folder = "C:\\temp\\MXDs"
output = "C:\\temp\\dataSources.csv"

f = codecs.open(output, "w", encoding="utf-8")
f.write("MXD;Layer;Data Source\n")

for file in os.listdir(mxd_folder):
    if file.endswith(".mxd"):
        mxd = os.path.join(mxd_folder, file)
        mxdFilename = os.path.splitext(file)[0]
        mapDocument = arcpy.mapping.MapDocument(mxd)    
        for lyr in arcpy.mapping.ListLayers(mapDocument):
            layerName = lyr.name
            if lyr.supports("DATASOURCE"):
                layerDataSource = lyr.dataSource
                f.write(mxdFilename + "; " + layerName + "; " + layerDataSource + "\n")
            else:
                f.write(mxdFilename + "; " + layerName + "; <<COULD NOT READ DATA SOURCE>>\n")
                
f.close()
    
print "Completed"