如何用win32com在python中打开写保留的excel文件？

I'm trying to open a write-protected ms excel 2007 file using win32com in python -- I know the password. I can open it with user input of the password into the excel dialog box. I want to be able to open the file without any user interaction. I've tried the following, but it still pops up the dialog box.I'm trying to open a write-protected ms excel 2