file dialog changes

Hi, All,
I have been happily developing applications in a Win32/Python 2.7 environment for years, now.  I recently decided I needed to update multiple python packages, so I installed Anaconda on my Win7 computer.  Everything is more or less fine (once I dealt with some backward compatibility issues), but I noticed that the file dialogs called by tkinter are different now.  Here is what askopenfilename used to look like:I like it!
But here is the new version:Blech!
I have googled the bejeezus out of this, but I can't find an explanation for the difference.  I think it must boil down to differences in Tk/Tcl, or a setting therein, or possibly pywin32.  But I just haven't been able to figure it out.  Obviously, I'd like to go back to the old appearance.
If anyone has any suggestions to fix this problem, I would be most appreciative.
Best,Chad

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