old_contents: # -*- coding: utf-8 -*-
  
  """
  Copyright [2009-2017] EMBL-European Bioinformatics Institute
  Licensed under the Apache License, Version 2.0 (the "License");
  you may not use this file except in compliance with the License.
  You may obtain a copy of the License at
  http://www.apache.org/licenses/LICENSE-2.0
  Unless required by applicable law or agreed to in writing, software
  distributed under the License is distributed on an "AS IS" BASIS,
  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  See the License for the specific language governing permissions and
  limitations under the License.
  """
  
  import csv
  
  from ..db import cursor
  
  
  def ranges_between(start, stop, max_size):
      for start in xrange(start, stop, max_size):
          last = min(start + max_size, stop)
          yield (start, last)
  
      if last < stop:
          yield (last, stop)
  
  
  def upi_ranges(dbconf, table_name, max_size):
      """
      This will create range of the ids for all UPI's in the database.
      """
  
      with cursor(dbconf) as cur:
          cur.execute('select max(id) from %s' % table_name)
          stop = cur.fetchone()[0]
  
      return ranges_between(1, stop, max_size)
  
  
  def to_file(dbconf, table_name, max_size, output):
      ranges = upi_ranges(dbconf, table_name, max_size)
      ranges = [[table_name] + r for r in ranges]
      csv.writer(output).writerows(ranges)
  
new_contents: # -*- coding: utf-8 -*-
  
  """
  Copyright [2009-2017] EMBL-European Bioinformatics Institute
  Licensed under the Apache License, Version 2.0 (the "License");
  you may not use this file except in compliance with the License.
  You may obtain a copy of the License at
  http://www.apache.org/licenses/LICENSE-2.0
  Unless required by applicable law or agreed to in writing, software
  distributed under the License is distributed on an "AS IS" BASIS,
  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  See the License for the specific language governing permissions and
  limitations under the License.
  """
  
  import csv
  
  from ..db import cursor
  
  
  def ranges_between(start, stop, max_size):
      for start in xrange(start, stop, max_size):
          last = min(start + max_size, stop)
          yield (start, last)
  
      if last < stop:
          yield (last, stop)
  
  
  def upi_ranges(dbconf, table_name, max_size):
      """
      This will create range of the ids for all UPI's in the database.
      """
  
      with cursor(dbconf) as cur:
          cur.execute('select max(id) from %s' % table_name)
          stop = cur.fetchone()[0]
  
      return ranges_between(1, stop, max_size)
  
  
  def to_file(dbconf, table_name, max_size, output):
      ranges = upi_ranges(dbconf, table_name, max_size)
      ranges = [[table_name] + list(r) for r in ranges]
      csv.writer(output).writerows(ranges)
  
subject: Correct generation of UPI data