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aprx = arcpy.mp.ArcGISProject("CURRENT")
map = aprx.listMaps()[0]
for lyr in map.listLayers():
print(lyr.name)
# Here this renames a layer that has a keyword "Building" in it to "BuildingFootprint" in TOC
if "Building" in lyr.name:
layerName = str(lyr.name)
lyr.name = lyr.name.replace(layerName, "BuildingFootprint")
print(f"Layer renamed to: {lyr.name}")