old_contents: """Generate publication-quality data acquisition methods section from BIDS dataset.
  """
  from collections import Counter
  
  from bids.reports import utils
  
  
  class BIDSReport(object):
      """
      Generates publication-quality data acquisition methods section from BIDS
      dataset.
      """
      def __init__(self, layout):
          self.layout = layout
  
      def generate(self, task_converter=None):
          """Generate the methods section.
          """
          if task_converter is None:
              task_converter = {}
          descriptions = []
          sessions = self.layout.get_sessions()
          if sessions:
              for ses in sessions:
                  subjs = self.layout.get_subjects(session=ses)
                  for sid in subjs:
                      description = utils.report(self.layout, subj=sid, ses=ses,
                                                 task_converter=task_converter)
                      descriptions.append(description)
          else:
              subjs = self.layout.get_subjects()
              for sid in subjs:
                  description = utils.report(self.layout, subj=sid, ses=None,
                                             task_converter=task_converter)
                  descriptions.append(description)
          counter = Counter(descriptions)
          print('Number of patterns detected: {0}'.format(len(counter.keys())))
          return counter
  
new_contents: """Generate publication-quality data acquisition methods section from BIDS dataset.
  """
  from __future__ import print_function
  from collections import Counter
  
  from bids.reports import utils
  
  
  class BIDSReport(object):
      """
      Generates publication-quality data acquisition methods section from BIDS
      dataset.
      """
      def __init__(self, layout):
          self.layout = layout
  
      def generate(self, task_converter=None):
          """Generate the methods section.
          """
          if task_converter is None:
              task_converter = {}
          descriptions = []
          sessions = self.layout.get_sessions()
          if sessions:
              for ses in sessions:
                  subjs = self.layout.get_subjects(session=ses)
                  for sid in subjs:
                      description = utils.report(self.layout, subj=sid, ses=ses,
                                                 task_converter=task_converter)
                      descriptions.append(description)
          else:
              subjs = self.layout.get_subjects()
              for sid in subjs:
                  description = utils.report(self.layout, subj=sid, ses=None,
                                             task_converter=task_converter)
                  descriptions.append(description)
          counter = Counter(descriptions)
          print('Number of patterns detected: {0}'.format(len(counter.keys())))
          return counter
  
subject: Add future import for Py2.