old_contents: # Python Security Project (PySec) and its related class files.
  #
  # PySec is a set of tools for secure application development under Linux
  #
  # Copyright 2014 PySec development team
  #
  # 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.
  #
  # -*- coding: ascii -*-
  """PySec is a set of tools for secure application development under Linux"""
  from pysec import (alg,
                     core,
                     io,
                     kv,
                     load,
                     log,
                     net,
                     utils,
                     xsplit)
  
  
  _OPEN_MODES = {
      'r': io.fd.FO_READEX,
      'rb': io.fd.FO_READEX,
      'w': io.fd.FO_WRITETR,
      'w+': io.fd.FO_WRITE,
      'a': io.fd.FO_APPEND
  }
  
  def open(path, mode='r'):
      mode = _OPEN_MODES.get(str(mode), None)
      if mode is None:
          raise ValueError("unknown open mode %r" % mode)
      return io.fd.File.open(path, mode]
  
new_contents: # Python Security Project (PySec) and its related class files.
  #
  # PySec is a set of tools for secure application development under Linux
  #
  # Copyright 2014 PySec development team
  #
  # 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.
  #
  # -*- coding: ascii -*-
  """PySec is a set of tools for secure application development under Linux"""
  from pysec import (alg,
                     core,
                     io,
                     kv,
                     load,
                     log,
                     net,
                     utils,
                     xsplit)
  
  
  _OPEN_MODES = {
      'r': io.fd.FO_READ,
      'w': io.fd.FO_WRITE,
      'a': io.fd.FO_APPEND
  }
  
  def open(path, mode='r'):
      mode = _OPEN_MODES.get(str(mode), None)
      if mode is None:
          raise ValueError("unknown open mode %r" % mode)
      return io.fd.File.open(path, mode)
  
subject: fix error in open() and change flags