dynamo_get-levels-by-name.py

#Given a level name or a list or level names, return the matching level/s found
import clr
clr.AddReference('ProtoGeometry')
from Autodesk.DesignScript.Geometry import *

# Import DocumentManager and TransactionManager
clr.AddReference("RevitServices")
import RevitServices
from RevitServices.Persistence import DocumentManager
from RevitServices.Transactions import TransactionManager

# Import RevitAPI
clr.AddReference("RevitAPI")
import Autodesk
from Autodesk.Revit.DB import *


def getLevelsByName(levelNames):	
	doc = DocumentManager.Instance.CurrentDBDocument	
	allLevels = FilteredElementCollector(doc).OfClass(Level).ToElements()
	return loopSublists(levelNames, allLevels)


def loopSublists(data, allLevels):
	out = []
	if type(data) is list:
		for d in data:
			out.append(loopSublists(d, allLevels))
	elif data != None:
		for i in allLevels:
			if i.Name == data:
				out = i
				break
			else:
				continue
	return out

OUT = getLevelsByName(IN[0])