(self, values, memory)
Initialise empty expression.
Initialise empty expression.
Initialise empty expression .
def __init__(self, values, memory):
        """Initialise empty expression."""
        self._values = values
        # for variable retrieval
        self._memory = memory
        # user-defined functions
        self.user_functions = userfunctions.UserFunctionManager(memory, values, self)
        # initialise syntax tables
        self._init_syntax()
        # callbacks must be initilised later
        self._callbacks = {}
        self._extensions = {}
def __init__ ( self , values , memory ) : self . _values = values # for variable retrieval self . _memory = memory # user-defined functions self . user_functions = userfunctions . UserFunctionManager ( memory , values , self ) # initialise syntax tables self . _init_syntax ( ) # callbacks must be initilised later self . _callbacks = { } self . _extensions = { }