[Capture1] Hi, I created a graph that collect wall types & thicknesses and exporting to Excel, i need to filter wall types by family , to get only basic wall family to list , how could i do it via python script? screenshot attached.

Hi @rinag [image] rinag: oh thats because of “In place” walls that got null element.name , is there a way to fix that? Use Object.IsNull node after Element.Name node that will give you list of booleans. You can then use FilterByBoolMask node to filter OUT Walls without inplace.

Filtering Wall types by Family

Revit

Fiesta June 6, 2019, 7:55am 2

you don’t need to do this with python:

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Filtering Wall types by Family

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