= 'MESH': print("Object is not a mesh!") quit() # Deselect all vertices/edges/faces bpy.ops.mesh.select_all(action='DESELECT') # Select all edges marked as seams bpy.ops.object.mode_set(mode='EDIT') bpy.ops.mesh.select_mode(type='EDGE') bpy.ops.mesh.select_all(action='DESELECT...