(heap)
return returnitem
Pop the smallest item off the heap, maintaining the heap invariant.
Pop the smallest item off the heap, maintaining the heap invariant.
Pop the smallest item off the heap maintaining the heap invariant .
def heappop(heap):
    """Pop the smallest item off the heap, maintaining the heap invariant."""
    lastelt = heap.pop()    # raises appropriate IndexError if heap is empty
    if heap:
        returnitem = heap[0]
        heap[0] = lastelt
        _siftup(heap, 0)
    else:
        returnitem = lastelt
    return returnitem
def heappop ( heap ) : lastelt = heap . pop ( ) # raises appropriate IndexError if heap is empty if heap : returnitem = heap [ 0 ] heap [ 0 ] = lastelt _siftup ( heap , 0 ) else : returnitem = lastelt return returnitem