dataset build not working when not proprietary of audio files

[mathieudpnt]

When trying to build a dataset on data_uploader notebook from audio files uploaded from someone else, i get a permission error

[Gautzilla]

Seems like we are trying to change the folder permissions only to be able to write in it, without checking first if we do already have the right to write in it.

I'd use a util function to do both subsequently, e.g.

def change_permissions_if_writing_not_permitted(path: Path):
    if os.access(path, os.W_OK):
        return

    try:
        os.chmod(path, DPDEFAULT)
    except PermissionError:
        raise PermissionError(f"You do not have the permission to write to {p}, nor to change its permissions.")

I think it could do the trick