old_contents: #!/usr/bin/python
  # Copyright (c) 2012 The Chromium Authors. All rights reserved.
  # Use of this source code is governed by a BSD-style license that can be
  # found in the LICENSE file.
  
  '''In GRIT, we used to compile a lot of regular expressions at parse
  time.  Since many of them never get used, we use lazy_re to compile
  them on demand the first time they are used, thus speeding up startup
  time in some cases.
  '''
  
  import re
  
  
  class LazyRegexObject(object):
    '''This object creates a RegexObject with the arguments passed in
    its constructor, the first time any attribute except the several on
    the class itself is accessed.  This accomplishes lazy compilation of
    the regular expression while maintaining a nearly-identical
    interface.
    '''
  
    def __init__(self, *args, **kwargs):
      self._stash_args = args
      self._stash_kwargs = kwargs
      self._lazy_re = None
  
    def _LazyInit(self):
      if not self._lazy_re:
        self._lazy_re = re.compile(*self._stash_args, **self._stash_kwargs)
  
    def __getattribute__(self, name):
      if name in ('_LazyInit', '_lazy_re', '_stash_args', '_stash_kwargs'):
        return object.__getattribute__(self, name)
      else:
        self._LazyInit()
        return self._lazy_re.__getattribute__(name)
  
  
  def compile(*args, **kwargs):
    '''Creates a LazyRegexObject that, when invoked on, will compile a
    re.RegexObject (via re.compile) with the same arguments passed to
    this function, and delegate almost all of its methods to it.
    '''
    return LazyRegexObject(*args, **kwargs)
  
new_contents: #!/usr/bin/python
  # Copyright (c) 2012 The Chromium Authors. All rights reserved.
  # Use of this source code is governed by a BSD-style license that can be
  # found in the LICENSE file.
  
  '''In GRIT, we used to compile a lot of regular expressions at parse
  time.  Since many of them never get used, we use lazy_re to compile
  them on demand the first time they are used, thus speeding up startup
  time in some cases.
  '''
  
  import re
  
  
  class LazyRegexObject(object):
    '''This object creates a RegexObject with the arguments passed in
    its constructor, the first time any attribute except the several on
    the class itself is accessed.  This accomplishes lazy compilation of
    the regular expression while maintaining a nearly-identical
    interface.
    '''
  
    def __init__(self, *args, **kwargs):
      self._stash_args = args
      self._stash_kwargs = kwargs
      self._lazy_re = None
  
    def _LazyInit(self):
      if not self._lazy_re:
        self._lazy_re = re.compile(*self._stash_args, **self._stash_kwargs)
  
    def __getattribute__(self, name):
      if name in ('_LazyInit', '_lazy_re', '_stash_args', '_stash_kwargs'):
        return object.__getattribute__(self, name)
      else:
        self._LazyInit()
        return getattr(self._lazy_re, name)
  
  
  def compile(*args, **kwargs):
    '''Creates a LazyRegexObject that, when invoked on, will compile a
    re.RegexObject (via re.compile) with the same arguments passed to
    this function, and delegate almost all of its methods to it.
    '''
    return LazyRegexObject(*args, **kwargs)
  
subject: Use getattr() to support Python 2.6 and older.