[Python-Dev] Re: Adding a "call_once" decorator to functools

01.05.20 01:23, Paul Ganssle пише:

class LazyList:     def __init__(self, some_iterator):         self._iter = some_iterator         self._list = None

    @call_once     def as_list(self):         self._list = list(self._iter)         return self._list

call_once is not applicable here, because it is only for functions which do not have arguments, but as_list() takes the self argument.