(self, key, value)
Add a new value to the list of values for this key.
Add a new value to the list of values for this key.
Add a new value to the list of values for this key .
def append(self, key, value):
        ''' Add a new value to the list of values for this key. '''
        self.dict.setdefault(key, []).append(value)
def append ( self , key , value ) : self . dict . setdefault ( key , [ ] ) . append ( value )