code: def get_file_starts(file_list):
      '''
      Return the starting position (in bytes) of a list of files by
      iteratively summing their lengths
      '''
      starts = []
      total = 0
      for i in file_list:
          starts.append(total)
          total += i['length']
      print starts
      return startf get_file_starts(file_list):
      '''
      Return the starting position (in bytes) of a list of files by
      iteratively summing their lengths
      '''
      starts = []
      total = 0
      for i in file_list:
          starts.append(total)
          total += i['length']
      print starts
      return starts
docs: Return the starting position (in bytes) of a list of files by
      iteratively summing their lengths