Python Node (Based CPython and IronPython)

[manhgt214]

Hi all!

What is defference beetween CPython and IronPython on Python Node

CPython has error: 'Wall object has no attribute LookupParameter
=> IronPython ok

[mzjensen]

Hi @manhgt214,

The shift from IronPython to Python.NET was made awhile ago. This thread might answer some questions.

[New Feature Preview] Python 3 Support Issue Thread

Dear Dynamo Lovers, Greetings from Dynamo Team. We hope you are doing well in this special situation. Today I am writing to give you a preview of the upcoming Python 3 support we will add to Python workflows starting from Dynamo 2.7.x releases. We will keep you in loop with all these changes and hopefully get feedback when things do not make sense jump to your eyes. You will be able to try it out using our daily builds on dynamobuilds.com. The new Python node engine lable on lower right corne…

This blog post may also help.

Why has Dynamo Switched to Python 3, Should I Update Too? - Dynamo BIM

[c.poupin]

Hello @manhgt214
out of curiosity, can you share a sample RVT file for test ?, the bug does not seem to occur on all walls type

[manhgt214]

This is example
Thank you!

Project1.rvt (4.8 MB)

import clr
clr.AddReference('RevitAPI')
from Autodesk.Revit.DB import *
clr.AddReference('RevitServices')
from RevitServices.Persistence import DocumentManager
doc = DocumentManager.Instance.CurrentDBDocument

Walls = FilteredElementCollector(doc).OfCategory(BuiltInCategory.OST_Walls).WhereElementIsNotElementType().ToElements()

Comments = []

for i in Walls:
	Comments.append(i.LookupParameter('Comments').AsValueString())

OUT = Comments

[c.poupin]

@manhgt214
strange, I did not manage to get this error