For nearly a century, Palm Springs has attracted showbizzers seeking relief from East Coast weather and/or West Coast relationships they find too stifling. This past weekend, the Palm Springs Preservation Foundation’s Desert Spanish Weekend offered fans of Spanish architecture peeks at 10 classic homes as well as socializing in places where, as Faulkner said, “The past isn’t dead, it’s not even past.”For instance, at the Casa Cody, P.S. fans could stand next to the small hardwood deck where Charlie Chaplin danced for his partygoing pals. The honorary chairperson of the event, Diane Keaton, isn’t a mere cultural tourist. Co-author of the lush Rizzoli tome “California Romantica,” Keaton is also embarking on a literary project with Spanish interior designer Martin Newman, who has guided the renovations of many cherished Spanish abodes.