Hi lalo15894,
Please check your sketch is running by adding the blinking example to your example (if you need assistance on this, just let me know).
In your python code, print/write to file instead of console (e.g. print "La camara no se encuentra").
Please let me know your results.
Just in case: please show the SD contents as seen as a Linux/Windows removable disk.
HTH,
Fernando.