Re: Heap Implementation

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From	srinivas devaki <mr.eightnoteight@gmail.com>
Newsgroups	comp.lang.python
Subject	Re: Heap Implementation
Date	Sun, 31 Jan 2016 10:29:38 +0530
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@Sven
actually you are not sweeping at all, as i remember from my last post
what i meant by sweeping is periodically deleting the elements which
were marked as popped items.

kudos on that __setitem__ technique,
instead of using references to the items like in HeapDict, it is
brilliant of you to simply use __setitem__

On Sun, Jan 31, 2016 at 4:17 AM, Sven R. Kunze <srkunze@mail.de> wrote:
> Hi again,
>
> as the topic of the old thread actually was fully discussed, I dare to open
> a new one.
>
> I finally managed to finish my heap implementation. You can find it at
> https://pypi.python.org/pypi/xheap + https://github.com/srkunze/xheap.
>
> I described my motivations and design decisions at
> http://srkunze.blogspot.com/2016/01/fast-object-oriented-heap-implementation.html
>
> @Cem
> You've been worried about a C implementation. I can assure you that I did
> not intend to rewrite the incredibly fast and well-tested heapq
> implementation. I just re-used it.
>
> I would really be grateful for your feedback as you have first-hand
> experience with heaps.
>
> @srinivas
> You might want to have a look at the removal implementation. Do you think it
> would be wiser/faster to switch for the sweeping approach?
>
> I plan to publish some benchmarks to compare heapq and xheap.
>
> @all
> What's the best/standardized tool in Python to perform benchmarking? Right
> now, I use a self-made combo of unittest.TestCase and time.time + proper
> formatting.
>
> Best,
> Sven
>
>
> PS: fixing some weird typos and added missing part.

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Re: Heap Implementation srinivas devaki <mr.eightnoteight@gmail.com> - 2016-01-31 10:29 +0530

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