Hold it! Its Fixed.
I guess since its Mid Autumn Festival here in China, I am supposed to be working instead of playing with my music, and I'm having a beer to boot, I received a moment of inspiration. After trying saving through the link, save as, etc and then changing the extension, and all to no avail... my very last try before I threw my computer out the window worked.
Note to Mac users on Safari having an issue and those who are computer illiterate like me, this is what worked:
open https://raw.github.com/musicbrainz/pica … overart.py in a new tab
click and choose save page as
at the top of the pop up, export as: coverart.py.txt - delete the .txt at the end
at the bottom of the pop up, format: make sure you choose page source
on the following pop up click don't append (the .txt) extension
Then use the saved file for installing the plugin as usual and you are in business. Every other save and/or extension file change simply did not work.
If you dont notice I am very much proud of my accomplishment at the moment. (please the more tech savvy don't spoil it)