It would be highly useful for the community to be able to collaboratively concurrently edit python notebooks (just like any google doc for example). Here we can discuss possible solutions.
One is a new system made by the Sharelatex team: DataJoy https://www.getdatajoy.com/
But this is not free apparently.
It’s one of the major milestones of the jupyter project. They still haven’t announced any release date or beta yet, but it’s supposed to be “soon”.
They will use google drive (they have support from google developers) as backend but also want to be “synchronisation platform agnostic”.
It doesn’t allow collaborative editing, but it provides a sort of tmpnb for everyone !
I tested it on one of my repositoryes and it works.
One drawback, it doesn’t support setuptools for now (I put an issue), so you have to make a requirements.txt file which includes your dependancies.