Returns a dict with an item per key

	Parameters:
	-----------
		items : string, list or dict
			Items (ie line styles)
		keys: list 
			List of keys
		items_names : string
			Name of items

def get_items_as_list(items,keys,items_names='styles'):
	"""
	Returns a dict with an item per key

	Parameters:
	-----------
		items : string, list or dict
			Items (ie line styles)
		keys: list 
			List of keys
		items_names : string
			Name of items 
	"""
	if type(items)!=dict:
		if type(items)==list:
			if len(items)!=len(keys):
				raise Exception('List of {0} is not the same length as keys'.format(items_names))
			else:
				items=dict(zip(keys,items))
		else:
			items=dict(zip(keys,[items]*len(keys)))
	return items