text: #!/usr/bin/python
  #
  # Copyright 2012 Google Inc. All Rights Reserved.
  #
  # 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.
  
  """Work around a regression in Python 2.6 that makes RegexObjects uncopyable."""
  
  
  import re
  
  
  class CopyableRegexObject(object):
      """Like a re.RegexObject, but can be copied."""
  
      def __init__(self, pattern):
          self.pattern = pattern
          self.regex = re.compile(pattern)
  
      def match(self, *args, **kwargs):
          return self.regex.match(*args, **kwargs)
  
      def sub(self, *args, **kwargs):
          return self.regex.sub(*args, **kwargs)
  
      def __copy__(self):
          return CopyableRegexObject(self.pattern)
  
      def __deepcopy__(self, unused_memo):
          return self.__copy__()
  