PyDPF
A Digital Picture Frame Application written in Python
...As user interface for graphical output a Appotech AX206 DPF can be configured, hence this application is designed for embedded linux devices without standard monitor. A virtual QT based DPF e.g. for test purposes is available,too.
PyDPF is running fine on my RasperryPi. Please look at AudiculaPi project (https://sourceforge.net/projects/audiculapi).