TypeError: expected int, got list

[jw.vanasselt]

Hi @Elie.Trad ,

I have in another script the same error but my list is deeper.
How can i use this method:

@Elie.Trad

for pf, i in zip(pipe_fitting, ukeys2):
	n_section.append(pf.LookupParameter("Section").Set(i))

It’s about this forum:

Change length inside a list when connector is unconnected in python

@Nick_Boyts , I have almost the solution, I have changed the values inside the loop but when I try to set them inside the parameter I got an error: [image] elements and values structure list: [image] What do I miss? elementen = UnwrapElement(IN[0]) TransactionManager.Instance.EnsureInTransaction(doc) #connectors controleren en unconnected pipes over houden lengtes = [] for pipe in elementen: for p in pipe: lengtes.append([]) for i in p: namen = GetName(i) try: conns = i.Con…