Question on line 35

[swarochisa]

Hello,

I'm trying to learn Revit API and I'm new to github and python. Purging through the API in Revit is something that i'm interested in and after spending lots of time I found your code here. Was able to understand most of it except for line 35.

I understand that this a list constructor
List [PerformanceAdviserRuleId] ()
but I didn't understand why the parenthesis are at the end while the square brackets enclose the Performance class. Isn't this supposed to be like
list ([PerformanceAdviserRuleId])
Also, is the "L" in the constructor supposed to be uppercase? my python editor gave me an error when I used upper case.

[jmcouffin]

It is a .NET List collection
the [] content tells that the type of List is a list containing PerformanceAdviserRuleId
https://docs.microsoft.com/en-us/dotnet/api/system.collections.generic.list-1?view=net-6.0

[swarochisa]

Don't think I understand how this would work. I used your code in a python script node in dynamo but nothing seems to happen. Your code doesn't have any inputs so I assume it just runs when executed. Am I doing something wrong here?

Sorry about the questions, I'm unfamiliar with APIs and how to use them for my requirements through dynamo.

[jmcouffin]

I used your code in a python script node in dynamo but nothing seems to happen.

No input, you are right,
The code itself does output purgeable elements and purgeable elements ids, if you want to delete it, you need to plug a element.delete node from that output

[swarochisa]

That makes sense , I was able to get it to run. However, when I was testing it on one of my projects I saw that this code didn't return the elements and element Ids of the "materials"? Is there any reason why these are not picked up? Can I make changes so that they get picked up?