traversal outlook folders

#!/usr/bin/env python
# _*_ coding: utf-8 _*_
# @Time     : 2017/5/15 9:58
# @Author   : otfsenter
# @File     : main.py
from win32com.client.gencache import EnsureDispatch as Dispatch

outlook = Dispatch("Outlook.Application")
mapi = outlook.GetNamespace("MAPI")


def oli(outlook_object):
    for item_index in xrange(1, outlook_object.Count+1):
        yield (item_index, outlook_object[item_index])

for inx, folder in oli(mapi.Folders):
    print folder.Name

    for inx1, subfolder in oli(folder.Folders):
        print "(%i)" % inx1, subfolder.Name #, "=> ", subfolder

        try:
            for inx2, subfolder1 in oli(subfolder.Folders):
                print "    (%i)" % inx2, subfolder1.Name #, "=> ", subfolder1
        except:
            pass

    if inx == 1:
        break