code: def set_recent_files(self, recent_files):
          
          for recent_file in recent_files[:]:
              if not os.path.isfile(recent_file):
                  recent_files.remove(recent_file)
          try:
              self.CONF[WORKSPACE].set('main', 'recent_files',
                                       list(OrderedDict.fromkeys(recent_files)))
          except EnvironmentError:
              pass
docs: Set a list of files opened by the project.