Hi Bachir,
In Python 2, I believe one can import pathlib2 (in the standard library) for all one's pathlib needs.
I wouldn't say I'm having any major issues. My current workflow is to render all path-like things (directory structures and filenames) as Path objects. This allows me to check if a file or directory exists and remove or create it based on the workflow, or craft other strings based on file/directory names, etc, all with built in methods or attributes of the Path objects.
Currently, any time these Path objects are passed to fullRMC they need to be first cast as strings, which is not terribly inconvenient, just mildly non pythonic, as most other packages accept Path objects when referencing files/directories.
Cheers,
Rob