Sort function in Python

1

I created a Dynamo to collect the mark values from assembly members. when i sort inverse the list, 10 and 11 coming after 2.

# Enable Python support and load DesignScript library
import clr
clr.AddReference('ProtoGeometry')
from Autodesk.DesignScript.Geometry import *
import sys
import math
clr.AddReference('RevitServices')
clr.AddReference('RevitAPI')
clr.AddReference('RevitAPIUI')
clr.AddReference('RevitNodes')
from  Autodesk.Revit.UI import *
from  Autodesk.Revit.DB import *
import Revit
clr.ImportExtensions(Revit.Elements)
from RevitServices import *
import Autodesk.Revit.UI.Selection
from Autodesk.Revit.UI.Selection import ISelectionFilter
from RevitServices.Persistence import DocumentManager
from RevitServices.Transactions import TransactionManager
doc = DocumentManager.Instance.CurrentDBDocument
uidoc = DocumentManager.Instance.CurrentUIApplication.ActiveUIDocument
clr.ImportExtensions(Revit.Elements)

# The inputs to this node will be stored as a list in the IN variables.


#selIds = uidoc.Selection.GetElementIds()

class AssemblyFilter(Selection.ISelectionFilter):
	def __init__(self):
		pass
	def AllowElement(self, ref):
		if ref.Category.Name == "Assemblies" :
			return True
		else:
			return False
	def AllowReference(self, element):
		return true
		
select = uidoc.Selection
obt1 = Selection.ObjectType.Element
selectassembly = select.PickObject(obt1.Element, AssemblyFilter())
ducts = []

elt1 = doc.GetElement(selectassembly)
elt = doc.GetElement(selectassembly.ElementId)
memberids = elt.GetMemberIds()

members = []
marklist = []
for i in memberids:
	try:
		marklist.append(doc.GetElement(i).LookupParameter("Mark").AsString())
		members.append(doc.GetElement(i))
	except:
		pass	
markset = set(marklist)	
sortedmarklist = []
sortedmarklst = []
for ii in markset:
	sortedmarklist.append(ii)
	#sortedmarklst.append(ii)
sortedmarklist.sort(reverse = True)
#sortedmarklst.sort()
breakindex = sortedmarklist.index(str(IN[1]))

"""
count = breakindex
sortedmarklistlen = len(sortedmarklist)
limit = sortedmarklistlen - 1

while count < limit :
	sortedmarklist.pop(breakindex + 1)
	count += 1
	
if IN[2] < 0 :
	sortedmarklist.sort()
	
finalmarkList = []
"""
"""
for mem in members:
	for li in sortedmarklist:
		if mem.LookupParameter("Mark").AsString() == str(li):
			TransactionManager.Instance.EnsureInTransaction(doc)
			fm = mem.LookupParameter("Mark").Set(str(int(li) + IN[2]))
			TransactionManager.Instance.TransactionTaskDone()
			finalmarkList.append(fm)
"""
OUT = sortedmarklist#,finalmarkList

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2

It is probably sorting them as strings, try making them into integers in Python using int(value) before sorting them. If you need them as strings you can turn them back post-sort using str(value), or sort them using the sorted statement and a lambda function like this:

newList = sorted(stringList, key=lambda x: int(x))

I generally use strings for the sorted() statement but Iā€™m fairly sure it supports numbers and integers also.

The trick is that all of the marks must be valid as an integer however.

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