Hi all, I’m trying to get the CurveLoops property of a CurtainCell in python and it’s throwing a weird exception: [image] Anyone knows what’s going on here? Here’s the code: import clr clr.AddReference('ProtoGeometry') from Autodesk.DesignScript.Geometry import * clr.AddReference('RevitAPI') f…

Can you verify that the walls that you are inputing are curtain walls? Your code works fine for me in Revit 2019.2 / Dynamo 2.0.3.0. I can generate similar errors when the inputed wall does not have a CurtainGrid. I can generate this exact error when the curtain grid contains grids that have segmen…

I think you’ll need to look at ICollection handling I. Python. Check this post and see if it gets you moving. [image] How to create an icollection to work with revit api Developers You have done it in line 38. Try to replace ids with col1 in line 44 Edit: To answer the …

Thanks but I can already iterate through cells and get an Autodesk.Revit.Db.CurtainCell object. Tried initialising an ICollection anyway and assigned the retrieved cells to that collection, then getting the property. Same exception is thrown: cells = [] cellsCol = List[CurtainCell](cells) curtain…

Uh so glad to hear that. Was driving me crazy. I tested a few things and it seems that it throws this error when a segment of a grid line from the curtain wall has been removed.

Yes, that was my conclusion as well. Just wrap the code in a try/except and it is able to continue after it hits the exception.

Getting a Revit property in Python throws a weird exception

Revit

SeanP November 25, 2019, 11:26pm 2

I think you’ll need to look at ICollection handling I. Python. Check this post and see if it gets you moving.

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Getting a Revit property in Python throws a weird exception

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