old_contents: # Copyright (C) 2011 Nippon Telegraph and Telephone Corporation.
  # Copyright (C) 2011 Isaku Yamahata <yamahata at valinux co jp>
  #
  # 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 inspect
  import logging
  import os
  import sys
  
  LOG = logging.getLogger('ryu.utils')
  
  
  def import_module(modname):
      try:
          __import__(modname)
      except:
          sys.path.append(os.path.dirname(os.path.abspath(modname)))
          name = os.path.basename(modname)
          if name.endswith('.py'):
              name = name[:-3]
          __import__(name)
          return sys.modules[name]
      return sys.modules[modname]
  
  
  RYU_DEFAULT_FLAG_FILE = ('ryu.conf', 'etc/ryu/ryu.conf' '/etc/ryu/ryu.conf')
  
  
  def find_flagfile(default_path=RYU_DEFAULT_FLAG_FILE):
      if '--flagfile' in sys.argv:
          return
  
      script_dir = os.path.dirname(inspect.stack()[-1][1])
  
      for filename in default_path:
          if not os.path.isabs(filename):
              if os.path.exists(filename):
                  # try relative to current path
                  filename = os.path.abspath(filename)
              elif os.path.exists(os.path.join(script_dir, filename)):
                  # try relative to script dir
                  filename = os.path.join(script_dir, filename)
  
          if not os.path.exists(filename):
              continue
  
          flagfile = '--flagfile=%s' % filename
          sys.argv.insert(1, flagfile)
          LOG.debug('flagfile = %s', filename)
          return
  
new_contents: # Copyright (C) 2011 Nippon Telegraph and Telephone Corporation.
  # Copyright (C) 2011 Isaku Yamahata <yamahata at valinux co jp>
  #
  # 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 inspect
  import logging
  import os
  import sys
  
  LOG = logging.getLogger('ryu.utils')
  
  
  def import_module(modname):
      try:
          __import__(modname)
      except:
          sys.path.append(os.path.dirname(os.path.abspath(modname)))
          name = os.path.basename(modname)
          if name.endswith('.py'):
              name = name[:-3]
          __import__(name)
          return sys.modules[name]
      return sys.modules[modname]
  
  
  RYU_DEFAULT_FLAG_FILE = ('ryu.conf', 'etc/ryu/ryu.conf' '/etc/ryu/ryu.conf')
  
  
  def find_flagfile(default_path=RYU_DEFAULT_FLAG_FILE):
      if '--flagfile' in sys.argv:
          return
  
      script_dir = os.path.dirname(inspect.stack()[-1][1])
  
      for filename in default_path:
          if not os.path.isabs(filename):
              if os.path.exists(filename):
                  # try relative to current path
                  filename = os.path.abspath(filename)
              elif os.path.exists(os.path.join(script_dir, filename)):
                  # try relative to script dir
                  filename = os.path.join(script_dir, filename)
  
          if not os.path.exists(filename):
              continue
  
          flagfile = '--flagfile=%s' % filename
          sys.argv.insert(1, flagfile)
          LOG.debug('flagfile = %s', filename)
          return
  
  
  def round_up(x, y):
      return ((x + y - 1) / y) * y
  
subject: add round_up utility function