old_contents: """Generic interface to all dbm clones.
  
  Instead of
  
  	import dbm
  	d = dbm.open(file, 'w', 0666)
  
  use
  
  	import anydbm
  	d = anydbm.open(file)
  
  The returned object is a dbhash, gdbm, dbm or dumbdbm object,
  dependent on availability of the modules (tested in this order).
  
  It has the following interface (key and data are strings):
  
  	d[key] = data	# store data at key (may override data at
  			# existing key)
  	data = d[key]	# retrieve data at key (raise KeyError if no
  			# such key)
  	del d[key]	# delete data stored at key (raises KeyError
  			# if no such key)
  	flag = d.has_key(key)	# true if the key exists
  	list = d.keys()	# return a list of all existing keys (slow!)
  
  Future versions may change the order in which implementations are
  tested for existence, add interfaces to other dbm-like
  implementations, and (in the presence of multiple implementations)
  decide which module to use based upon the extension or contents of an
  existing database file.
  
  The open function has an optional second argument.  This can be set to
  'r' to open the database for reading only.  The default is 'w', which
  differs from the dbm default ('r') for historic reasons.
  
  """
  
  _names = ['dbhash', 'gdbm', 'dbm', 'dumbdbm']
  
  for _name in _names:
  	try:
  		exec "import %s; _mod = %s" % (_name, _name)
  	except ImportError:
  		continue
  	else:
  		break
  else:
  	raise ImportError, "no dbm clone found; tried %s" % _names
  def open(file, flag = 'w', mode = 0666):
  	return _mod.open(file, flag, mode)
  
new_contents: """Generic interface to all dbm clones.
  
  Instead of
  
  	import dbm
  	d = dbm.open(file, 'w', 0666)
  
  use
  
  	import anydbm
  	d = anydbm.open(file)
  
  The returned object is a dbhash, gdbm, dbm or dumbdbm object,
  dependent on availability of the modules (tested in this order).
  
  It has the following interface (key and data are strings):
  
  	d[key] = data	# store data at key (may override data at
  			# existing key)
  	data = d[key]	# retrieve data at key (raise KeyError if no
  			# such key)
  	del d[key]	# delete data stored at key (raises KeyError
  			# if no such key)
  	flag = d.has_key(key)	# true if the key exists
  	list = d.keys()	# return a list of all existing keys (slow!)
  
  Future versions may change the order in which implementations are
  tested for existence, add interfaces to other dbm-like
  implementations, and (in the presence of multiple implementations)
  decide which module to use based upon the extension or contents of an
  existing database file.
  
  The open function has an optional second argument.  This can be set to
  'r' to open the database for reading only.  The default is 'r', like
  the dbm default.
  
  """
  
  _names = ['dbhash', 'gdbm', 'dbm', 'dumbdbm']
  
  for _name in _names:
  	try:
  		exec "import %s; _mod = %s" % (_name, _name)
  	except ImportError:
  		continue
  	else:
  		break
  else:
  	raise ImportError, "no dbm clone found; tried %s" % _names
  def open(file, flag = 'r', mode = 0666):
  	return _mod.open(file, flag, mode)
  
subject: change default flag to match dbm/gdbm