(self)
return obj
Remove and return first element.
Remove and return first element.
Remove and return first element .
def pop(self):
        """Remove and return first element."""
        obj = None
        if not self.empty():
            obj = self.next
            self.remove(obj)
        return obj
def pop ( self ) : obj = None if not self . empty ( ) : obj = self . next self . remove ( obj ) return obj