xtuml/meta.py
def select_one(self, *args):
        '''
        Select a single instance from the instance pool. Query operators such as
        where_eq(), order_by() or filter functions may be passed as optional
        arguments.
        '''
        s = apply_query_operators(self.storage, args)
        return next(iter(s), None)
def select_one(self, *args):
        '''
        Select a single instance from the instance pool. Query operators such as
        where_eq(), order_by() or filter functions may be passed as optional
        arguments.
        '''
        s = apply_query_operators(self.storage, args)
        return next(iter(s), None)
def select_one ( self , * args ) : s = apply_query_operators ( self . storage , args ) return next ( iter ( s ) , None )
Select a single instance from the instance pool. Query operators such as
        where_eq(), order_by() or filter functions may be passed as optional
        arguments.
Select a single instance from the instance pool . Query operators such as where_eq () order_by () or filter functions may be passed as optional arguments .