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Whereas, when iterating over the objects held by the Paperspace Collection (which is itself a type of Block Definition), you are encountering Block Reference objects ( AcDbBlockReference), which do have the HasAttributes property.Ĭonsider that the Block Definition is essentially the "blueprint" for the block, and each Block Reference is an instance displaying the objects found within the block definition, at a specific position, scale, rotation & orientation in the drawing.Īttributes also have Attribute Definitions within the Block Definition, and corresponding Attribute References attached to each Block Reference. When invoking the Item method on the Blocks collection, you are obtaining a Block Definition object ( AcDbBlockTableRecord), which is a container for the set of objects constituting the block geometry and does not have the HasAttributes property. When I read the documentation, it seems like they should both be finding the same object. I don't understand why the second one works and the first one doesn't. If entity.EntityName = 'AcDbBlockReference': If I change the code to simply walk through all the objects, then it works: acad = ("AutoCAD.Application") This correctly prints the block name, but attempting to access the HasAttributes property causes this error: AttributeError: Item.HasAttributes My code: acad = ("AutoCAD.Application")Īcad.ActiveDocument = (os.path.normpath(os.path.join(baseDir,filename)))ĭoc = acad.ActiveDocument # Document objectĮntity = ('TTLB ATTRIBUTES') I want to select a specific block, and then edit some of its attributes. I have tried to follow the method shown here in the AutoCAD documentation: I am trying to automate some tasks in AutoCAD using Python and pywin32.