IronPython to CPython

[aaronrumple]

Where famsyb is FamilySymbol…
print(famsymb.FamilyName) works fine in IornPython and CPython3
print(famsymb.Name) fails in IronPython and CPython3 with no Property - Attribute Error

print(Element.Name.GetValue(famsymb)) returns the family type name as expected in IronPython

In CPython3:
print(Element.Name.GetValue(famsymb)) returns error: "
TypeError : instance property must be accessed through a class instance"

Trying to move everythong to CPython3 in Revit 2023. Any insight?

[jacob.small]

Can you post a full sample, including the relevant imports and such? Hard to reproduce otherwise.

[aaronrumple]

#! python3
import clr
import sys
print(sys.version)
from enum import Enum
import math
import traceback

import System
from System import Array
from System.Collections.Generic import *
clr.AddReference("RevitAPI")
clr.AddReference("RevitAPIUI")

import Autodesk 
from Autodesk.Revit.DB import *
from Autodesk.Revit.UI import *
#from pyrevit import UI
#from pyrevit import DB

doc = __revit__.ActiveUIDocument.Document
uidoc = __revit__.ActiveUIDocument
uiapp = __revit__
app = uiapp.Application

#Dynamo
#doc = DocumentManager.Instance.CurrentDBDocument
#uiapp = DocumentManager.Instance.CurrentUIApplication 
#app = uiapp.Application 
#uidoc = uiapp.ActiveUIDocument
fmanager = FamilyManager

myDocs = uiapp.Application.Documents

selection = uidoc.Selection.GetElementIds()
currView = doc.ActiveView

def PlaceBoundingBoxes():
	t = Transaction(doc, 'Create family instance.')
	t.Start()

	symbName = '00-00 Bounding Box'
	collector = FilteredElementCollector(doc)
	collector.OfCategory(BuiltInCategory.OST_DetailComponents)
	collector.OfClass(FamilySymbol)
	
	famtypeitr = collector.GetElementIdIterator()
	famtypeitr.Reset()
	
	for item in famtypeitr:
		famtypeID = item
		famsymb = doc.GetElement(famtypeID)
	
		if famsymb.Family.Name == symbName:
			loc = XYZ(0,0,0) 
			famsymb.Activate()
			print(famsymb.FamilyName)
			print(famsymb)
			familyInst = doc.Create.NewFamilyInstance(loc, famsymb, doc.ActiveView)
			sf = familyInst.LookupParameter("Scale Factor")
			sf.Set(currView.Scale)
			border = familyInst.LookupParameter("Annotation Border")
			brder = border.Set(0.125/12)
		else:
			pass
	
	t.Commit()

	PlaceBoundingBoxes()

[c.poupin]

it’s an inheritance problem, I wrote an article about it (use the translation button)

[Dynamo += Python] Obtenir le nom de certains Eléments

A few comments:

• the problem is fixed with PythonNet3.x and IronPython3.x
• you can use IronPython3.4 instead of CPython3 with pyRevit (it was just implemented a few weeks ago)

IronPython 3.4.0

[aaronrumple]

Thanks. I’ll look into it.
I was questioning my sanity.

[GavinNicholls]

Not sure if it’s a similar issue to this one, or similarly solvable in a similar manner?

When get access to property "Name" of ElementType, an AttributeError raised.

I come across the issue often in IronPython and pyRevit but am aware it’s generally a problem with IronPython, so unsure if CP3 shares it.

[c.poupin]

Hi, @GavinNicholls
yes, your issue is related to this bug
The bug is present on IronPython2 and PythonNet 2.5, but has been fixed on IronPython3 and PythonNet 3.

.NET property not accessible in derived classes

.NET property not accessible in derived classes where only the setter or the getter has been overridden

[christian.stan]

Hello,
Sorry for the off topic
We can do without lines 7 and 8 because already included in the clr,
That’s right?

# Charger les bibliothèques DesignScript et Standard Python
import sys
import clr
clr.AddReference('ProtoGeometry')
from Autodesk.DesignScript.Geometry import *

#clr.AddReference("RevitServices")
#import RevitServices 
from RevitServices.Persistence import DocumentManager
doc = DocumentManager.Instance.CurrentDBDocument
revit_version = int(doc.Application.VersionNumber)

OUT = dir(clr),revit_version

cordially
christian.stan

[c.poupin]

@christian.stan
I do not recommend, and it is only valid the CPython3/Pythonnet engine which loads several assemblies at the 1st initialization

[c.poupin]

A small comparative test with Ironpython3 / Ironpython2 / CPython3(PythonNet2.5)
to check that it is fixed in IPY3 (inheritance property problem)

[chuongmep]

I think this is a problem should be fix in Dynamo Revit 2024 support for ironpython 3.4

[chuongmep]

Just add one more solution to resolve temp issue can’t get Type Name element with python script in Cpython3 is try use get parameter, e.g :

# Update Family Symbols
for family_symbol in family_symbols:
    family = family_symbol.Family if hasattr(family_symbol, "Family") else None
    family_name = family_symbol.FamilyName if family and hasattr(family, "Name") else ""
    type_name = family_symbol.LookupParameter("Type Name").AsString()