Thx Kovid, I'll make the change and let it just be included in any next version when it naturally goes out.
I also found that for my Manage Series plugin that the ordered_dict.py I used to reference it from disappeared, and changed the code to use from collections instead. I am guessing more legacy code cleanup to take advantage of later Python again?
Any other things that come to mind? As a lot of my Python coding has come from what I have seen in Calibre that means your issues become my issues sometimes