IronPython如何讀取內含中文的.txt並輸出到message window

底下為範例碼：

# -*- coding: utf-8 -*-

import codecs
with codecs.open('d:/demo/help.txt', 'r', 'utf-8', errors = 'ignore') as f:   
    info = f.read()

    AddWarningMessage(info)

(圖一) help.txt

(圖二) 輸出到訊息視窗