jaraco/itertools.py
def _swap_on_miss(partition_result):
	"""
	Given a partition_dict result, if the partition missed, swap
	the before and after.
	"""
	before, item, after = partition_result
	return (before, item, after) if item else (after, item, before)
def _swap_on_miss(partition_result):
	before, item, after = partition_result
	return (before, item, after) if item else (after, item, before)
def _swap_on_miss ( partition_result ) : before , item , after = partition_result return ( before , item , after ) if item else ( after , item , before )
Given a partition_dict result, if the partition missed, swap
	the before and after.
Given a partition_dict result if the partition missed swap the before and after .