Method replace

recipes/Python/440673_Safe_heap_queue_class/recipe-440673.py:30–34

Equivalent to "x = heap.popmin(); heap.push(); return x" but more efficient.

(self, item)

        return self._unwrap(heapq.heappop(self._lst))

    def replace(self, item):
        '''Equivalent to "x = heap.popmin(); heap.push(); return x" but more
        efficient.
        '''
        return self._unwrap(heapq.heapreplace(self._lst, self._wrap(item)))

    def pushpop(self, item):
        'Equivalent to "heap.push(); return heap.popmin()" but more efficient.'