While most of the projects that have signed up above are migrating to Python 3 only code bases, we are gathering information about the difficulties that can be encountered both by developers and users during this process.

We are thus collecting a list of things to be aware of for when transitioning that are less obvious. For example : as a developer, how to make sure that your package manager like pip does not upgrade your libraries to incompatible versions on Python 2. See the Practicality Page for informations and Check our repository to contribute.