Method __del__

Lib/multiprocessing/pool.py:266–271

(self, _warn=warnings.warn, RUN=RUN)

    # Copy globals as function locals to make sure that they are available
    # during Python shutdown when the Pool is destroyed.
    def __del__(self, _warn=warnings.warn, RUN=RUN):
        if self._state == RUN:
            _warn(f"unclosed running multiprocessing pool {self!r}",
                  ResourceWarning, source=self)
            if getattr(self, '_change_notifier', None) is not None:
                self._change_notifier.put(None)

    def __repr__(self):
        cls = self.__class__