Get ProjectParameters with Python

Revit
,
1

Hello all,

Since I don’t have much experience with Python, I would like to ask your help for the following.

In Dynamo 2.6 I had a Python script that could retrieve the ProjectParamters in my project.

in Dynamo 2.16 (Revit 2023) I get an error with this same script. See image.

Who can help me solve this?

Get ProjectParameters
Get ProjectParameters2086×1219 246 KB

import clr
clr.AddReference(‘RevitAPI’)
from Autodesk.Revit.DB import *
import Autodesk

clr.AddReference(“RevitNodes”)
import Revit
clr.ImportExtensions(Revit.Elements)

clr.AddReference(“RevitServices”)
import RevitServices
from RevitServices.Persistence import DocumentManager

doc = DocumentManager.Instance.CurrentDBDocument
params =
cats =
iterator = doc.ParameterBindings.ForwardIterator()
while iterator.MoveNext():
params.append(iterator.Key.Name)
thesecats =
for cat in iterator.Current.Categories:
thesecats.append(Revit.Elements.Category.ById(cat.Id.IntegerValue))
cats.append(thesecats)
OUT = (params,cats)

2

Try install package IronPython instead
(now you run Cpython)

image

image
image587×564 38.6 KB

1 Like
3

Hi manhgt214,

Thank you for your response.

I have tried both IronPython2 and CPython3 and both to no avail.

4

Hey @Fernand77
Also for future reference, use the Preformatted text option when providing your code.
image

3 Likes
5

what error?
I tested your code, work on CPython
Check indentation level in loop.

import clr
clr.AddReference('RevitAPI')
from Autodesk.Revit.DB import *
import Autodesk

clr.AddReference('RevitNodes')
import Revit
clr.ImportExtensions(Revit.Elements)

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

doc = DocumentManager.Instance.CurrentDBDocument

params = []
cats = []

iterator = doc.ParameterBindings.ForwardIterator()

while iterator.MoveNext():
	params.append(iterator.Key.Name)
	thesecats = []
	for cat in iterator.Current.Categories:
		thesecats.append(Revit.Elements.Category.ById(cat.Id.IntegerValue))
	cats.append(thesecats)
OUT = (params,cats)

image
image1069×564 72.6 KB

6

Hi manhgt214,

I still get the message in my project.

Get ProjectParameters_01
Get ProjectParameters_011985×1079 254 KB

7

In a new empty project, it works fine…

image
image1204×772 84.7 KB

8

You can use: try except to ignore exception

import clr
clr.AddReference('RevitNodes')
import Revit
clr.ImportExtensions(Revit.Elements)

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

doc = DocumentManager.Instance.CurrentDBDocument

params = []
cats = []

iterator = doc.ParameterBindings.ForwardIterator()

while iterator.MoveNext():
	params.append(iterator.Key.Name)
	thesecats = []
	for cat in iterator.Current.Categories:
		try:
			thesecats.append(Revit.Elements.Category.ById(cat.Id.IntegerValue))
			cats.append(thesecats)
		except:
			pass
OUT = (params,cats)