def METHOD_NAME(list, key=None):
	'''Natural sort a list in place.
	See L{natural_sort_key} for details.
	@param list: list of strings to be sorted
	@param key: function producing strings for list items
	'''
	if key:
		def func(s):
			s = key(s)
			return (natural_sort_key(s), s)
	else:
		func = lambda s: (natural_sort_key(s), s)
	list.sort(key=func)