def ljust_list(_list, length, fill_word=None):
	"""
	Similar to ljust but for list.

	Usage:
		$ ljust_list([1, 2, 3], 5)
		> [1, 2, 3, None, None]
	"""
	# make a copy to avoid mutation of passed list
	_list = list(_list)
	fill_length = length - len(_list)
	if fill_length > 0:
		_list.extend([fill_word] * fill_length)

	return _list