human
Solve the following python programming problem given the following code:
def __init__(self, items, dict_remove = None) : 
    def remove(k, selfref = ref (self), dict_remove = dict_remove) : 
        self = selfref () 
        if ((self is not None) and (dict_remove is not None)) : 
            dict_remove (self) 
(self._items, self._selectors) = unzip ((self._try_ref (item, item) for item in items)) 
    self._items = tuple (self._items) 
    self._selectors = tuple (self._selectors) 

    
    

    Fix the buggy line: (self._items, self._selectors) = unzip ((self._try_ref (item, item) for item in items))
assistant
#Here is Python code to fix the buggy line: (self.

(self._items, self._selectors) = unzip ((self._try_ref (item, def remove() for item in items))