from com.jacob.com import Variant
from com.jacob.activeX import ActiveXComponent

shell = ActiveXComponent("Shell.Application")
hwnd = Variant(0)
title = Variant("Hello, COM(JACOB) World!")
option = Variant(0)
rootFolder = Variant(36)
params = [ hwnd, title, option, rootFolder ]
folder = shell.invoke( "BrowseForFolder", params )