arcpy.RepairGeometry_management(fc,"DELETE_NULL")
arcpy.AddSpatialIndex_management(fc)
arcpy.Integrate_management(fc,0.01)

import arcpy
import os

from arcpy import env
mxd = arcpy.mapping.MapDocument("CURRENT")
df = mxd.activeDataFrame
arcpy.env.overwriteOutput=True
path = r"D:DataFile.gdbfd"
topologya = path + "\Topol"
arcpy.CreateTopology_management(path,"Topol")
arcpy.AddFeatureClassToTopology_management(topologya,"lines")
arcpy.ValidateTopology_management(topologya)
arcpy.Delete_management(topologya)

arcpy.RefreshTOC()
arcpy.RefreshActiveView()