[issue4680] deque class should include high-water mark

[Raymond Hettinger]

Raymond Hettinger <rhettin...@users.sourceforge.net> added the comment:

FWIW, here's a trivial Queue subclass with instrumentation:

class HighWaterQueue(Queue):

    def _init(self, maxsize):
        Queue.__init__(self, maxsize)
        self.highwater = 0

    def _put(self, item):
        Queue._put(self, item)
        self.highwater = max(self.highwater, self._qsize())

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<http://bugs.python.org/issue4680>
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