I haven't yet found a clean solution to this problem. Seems to by a bug in the new libraries? Anyone knows where should I report it?
I do have a workaround: I can install PyIndi via pip before adding the PPA with the new versions of the libraries and then, only after installing PyIndi, update to the PPA and install the drivers for my CCD. Doing this PyIndi imports and works ok (I guess it is build against the old libraries?) and I have the drivers for the CCD.