old_contents: # Tai Sakuma <tai.sakuma@cern.ch>
  
  from .splitfuncs import create_file_start_length_list
  
  ##__________________________________________________________________||
  class DatasetIntoEventBuildersSplitter(object):
  
      def __init__(self, EventBuilder, eventBuilderConfigMaker,
                   maxEvents = -1, maxEventsPerRun = -1, maxFiles = -1
      ):
  
          if maxEventsPerRun == 0:
              raise ValueError("maxEventsPerRun cannot be 0")
  
          self.EventBuilder = EventBuilder
          self.eventBuilderConfigMaker = eventBuilderConfigMaker
          self.maxEvents = maxEvents
          self.maxEventsPerRun = maxEventsPerRun
          self.maxFiles = maxFiles
          self.create_file_start_length_list = create_file_start_length_list
  
      def __repr__(self):
          return '{}(EventBuilder = {!r}, eventBuilderConfigMaker = {!r}, maxEvents = {!r}, maxEventsPerRun = {!r}, maxFiles = {!r})'.format(
              self.__class__.__name__,
              self.EventBuilder,
              self.eventBuilderConfigMaker,
              self.maxEvents,
              self.maxEventsPerRun,
              self.maxFiles
          )
  
      def __call__(self, dataset):
          file_start_length_list = self._file_start_length_list(dataset)
          configs = self._create_configs(dataset, file_start_length_list)
          eventBuilders = [self.EventBuilder(c) for c in configs]
          return eventBuilders
  
      def _file_start_length_list(self, dataset):
  
          if self.maxEventsPerRun < 0 and self.maxEvents < 0:
              files = self.eventBuilderConfigMaker.file_list_in(dataset, maxFiles = self.maxFiles)
              return [(file_, 0, -1) for file_ in files]
  
          file_nevents_list = self.eventBuilderConfigMaker.file_nevents_list_for(
              dataset,
              maxEvents = self.maxEvents,
              maxFiles = self.maxFiles
          )
          file_start_length_list = self.create_file_start_length_list(file_nevents_list, self.maxEventsPerRun, self.maxEvents)
          return file_start_length_list
  
      def _create_configs(self, dataset, file_start_length_list):
          configs = [ ]
          for file_, start, length in file_start_length_list:
              config = self.eventBuilderConfigMaker.create_config_for(dataset, file_, start, length)
              configs.append(config)
          return configs
  ##__________________________________________________________________||
  
new_contents: # Tai Sakuma <tai.sakuma@cern.ch>
  
  from .splitfuncs import create_file_start_length_list
  
  ##__________________________________________________________________||
  class DatasetIntoEventBuildersSplitter(object):
  
      def __init__(self, EventBuilder, eventBuilderConfigMaker,
                   maxEvents = -1, maxEventsPerRun = -1, maxFiles = -1
      ):
  
          if maxEventsPerRun == 0:
              raise ValueError("maxEventsPerRun cannot be 0")
  
          self.EventBuilder = EventBuilder
          self.eventBuilderConfigMaker = eventBuilderConfigMaker
          self.maxEvents = maxEvents
          self.maxEventsPerRun = maxEventsPerRun
          self.maxFiles = maxFiles
          self.create_file_start_length_list = create_file_start_length_list
  
      def __repr__(self):
          return '{}(EventBuilder = {!r}, eventBuilderConfigMaker = {!r}, maxEvents = {!r}, maxEventsPerRun = {!r}, maxFiles = {!r})'.format(
              self.__class__.__name__,
              self.EventBuilder,
              self.eventBuilderConfigMaker,
              self.maxEvents,
              self.maxEventsPerRun,
              self.maxFiles
          )
  
      def __call__(self, dataset):
          file_start_length_list = self._file_start_length_list(dataset, self.maxEvents, self.maxEventsPerRun, self.maxFiles)
          configs = self._create_configs(dataset, file_start_length_list)
          eventBuilders = [self.EventBuilder(c) for c in configs]
          return eventBuilders
  
      def _file_start_length_list(self, dataset, maxEvents, maxEventsPerRun, maxFiles):
  
          if maxEventsPerRun < 0 and maxEvents < 0:
              files = self.eventBuilderConfigMaker.file_list_in(dataset, maxFiles = maxFiles)
              return [(file_, 0, -1) for file_ in files]
  
          file_nevents_list = self.eventBuilderConfigMaker.file_nevents_list_for(
              dataset,
              maxEvents = maxEvents,
              maxFiles = maxFiles
          )
          file_start_length_list = self.create_file_start_length_list(file_nevents_list, maxEventsPerRun, maxEvents)
          return file_start_length_list
  
      def _create_configs(self, dataset, file_start_length_list):
          configs = [ ]
          for file_, start, length in file_start_length_list:
              config = self.eventBuilderConfigMaker.create_config_for(dataset, file_, start, length)
              configs.append(config)
          return configs
  ##__________________________________________________________________||
  
subject: replace object's variables with local variables