Python 3 of py2exe "UnicodeDecodeError: 'cp950' codec can't decode bytes" 可能解法

前幾天，我在執行Python 3版的py2exe出現
"UnicodeDecodeError: 'cp950' codec can't decode bytes"
錯誤，就上網Google一下可能的解法：

notepad或notepad++的utf-8編碼文件： open('filename', encoding = 'utf-8-sig') 
notepad++的utf-8 without BOM文件： open('filename', encoding = 'utf8')

 最後我把C:\Python34\Lib\site-packages\py2exe\runtime.py，
第577 line：
從原本
with open(target.script, "U") as script_file:

改成
with open(target.script, "U", encoding = 'utf-8-sig') as script_file:

就可以正常執行

py -3.4 -m py2exe myscript.py -W mysetup.py
... edit myssetup.py
py -3.4 mysetup.py py2exe