Python | TypeError: iteration over non-sequence of type ViewSection

Developers
1

Hello,

I got the code below from the following link:
https://www.linkedin.com/pulse/methods-fitting-crop-region-elements-revit-using-dynamo-ashwin-kumar-

# Load the Python Standard and DesignScript Libraries
import clr
clr.AddReference('RevitAPI')
import Autodesk
from Autodesk.Revit.DB import *

clr.AddReference('RevitServices')
import RevitServices
from RevitServices.Persistence import DocumentManager
from RevitServices.Transactions import TransactionManager

#Reference the active Document and Application
doc = DocumentManager.Instance.CurrentDBDocument

view = UnwrapElement(IN[0])
TransactionManager.Instance.EnsureInTransaction(doc)

for v in view:
	if v.CropBoxActive == True:
		csm = v.GetCropRegionShapeManager()
		csm.RemoveCropRegionShape()
		
TransactionManager.Instance.TransactionTaskDone()

OUT = 0

and its producing the following error:

Warning: IronPythonEvaluator.EvaluateIronPythonScript operation failed.
Traceback (most recent call last):
File “”, line 19, in
TypeError: iteration over non-sequence of type ViewSection

Annotation%202019-07-12%20120644
Annotation%202019-07-12%201206441361×345 99.3 KB

I’m using Revit 2020

I’d be most appreciative if you could assist as to why it is producing an error.

2

hi,
this may happend because you have instance view not a list of view, make this instance as a list
try to use List.Create then Flatten before you input the result to Python node

3

I actually saw that solution when Googling my error but didn’t think it applied to my solution. Gave it a shot and it seems to have worked!

Thanks a lot @khuzaimah.ElecEng!