Date: Sun, 2 Feb 2020 10:54:39 +0000 (UTC) From: Sunpoet Po-Chuan Hsieh <sunpoet@FreeBSD.org> To: ports-committers@freebsd.org, svn-ports-all@freebsd.org, svn-ports-head@freebsd.org Subject: svn commit: r524842 - in head/devel: . py-heapdict Message-ID: <202002021054.012AsdtO072285@repo.freebsd.org>
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Author: sunpoet Date: Sun Feb 2 10:54:39 2020 New Revision: 524842 URL: https://svnweb.freebsd.org/changeset/ports/524842 Log: Add py-heapdict 1.0.1 heapdict implements the MutableMapping ABC, meaning it works pretty much like a regular Python dict. It's designed to be used as a priority queue, where items are added and consumed as follows: hd = heapdict() hd[obj1] = priority1 hd[obj2] = priority2 # ... (obj, priority) = hd.popitem() Compared to an ordinary dict, a heapdict has the following differences: - popitem(): Remove and return the (key, priority) pair with the lowest priority, instead of a random object. - peekitem(): Return the (key, priority) pair with the lowest priority, without removing it. Unlike the Python standard library's heapq module, the heapdict supports efficiently changing the priority of an existing object (often called "decrease- key" in textbooks). Altering the priority is important for many algorithms such as Dijkstra's Algorithm and A*. WWW: https://github.com/DanielStutzbach/heapdict Added: head/devel/py-heapdict/ head/devel/py-heapdict/Makefile (contents, props changed) head/devel/py-heapdict/distinfo (contents, props changed) head/devel/py-heapdict/pkg-descr (contents, props changed) Modified: head/devel/Makefile Modified: head/devel/Makefile ============================================================================== --- head/devel/Makefile Sun Feb 2 10:54:33 2020 (r524841) +++ head/devel/Makefile Sun Feb 2 10:54:39 2020 (r524842) @@ -4486,6 +4486,7 @@ SUBDIR += py-gtfslib SUBDIR += py-gyp SUBDIR += py-hash_ring + SUBDIR += py-heapdict SUBDIR += py-hghooks SUBDIR += py-hgsubversion SUBDIR += py-hgtools Added: head/devel/py-heapdict/Makefile ============================================================================== --- /dev/null 00:00:00 1970 (empty, because file is newly added) +++ head/devel/py-heapdict/Makefile Sun Feb 2 10:54:39 2020 (r524842) @@ -0,0 +1,25 @@ +# Created by: Po-Chuan Hsieh <sunpoet@FreeBSD.org> +# $FreeBSD$ + +PORTNAME= heapdict +PORTVERSION= 1.0.1 +CATEGORIES= devel python +MASTER_SITES= CHEESESHOP +PKGNAMEPREFIX= ${PYTHON_PKGNAMEPREFIX} +DISTNAME= HeapDict-${PORTVERSION} + +MAINTAINER= sunpoet@FreeBSD.org +COMMENT= Heap with decrease-key and increase-key operations + +LICENSE= BSD3CLAUSE +LICENSE_FILE= ${WRKSRC}/LICENSE + +USES= python +USE_PYTHON= autoplist concurrent distutils + +NO_ARCH= yes + +do-test: + cd ${WRKSRC} && ${SETENV} ${MAKE_ENV} ${PYTHON_CMD} test_heap.py + +.include <bsd.port.mk> Added: head/devel/py-heapdict/distinfo ============================================================================== --- /dev/null 00:00:00 1970 (empty, because file is newly added) +++ head/devel/py-heapdict/distinfo Sun Feb 2 10:54:39 2020 (r524842) @@ -0,0 +1,3 @@ +TIMESTAMP = 1580562237 +SHA256 (HeapDict-1.0.1.tar.gz) = 8495f57b3e03d8e46d5f1b2cc62ca881aca392fd5cc048dc0aa2e1a6d23ecdb6 +SIZE (HeapDict-1.0.1.tar.gz) = 4274 Added: head/devel/py-heapdict/pkg-descr ============================================================================== --- /dev/null 00:00:00 1970 (empty, because file is newly added) +++ head/devel/py-heapdict/pkg-descr Sun Feb 2 10:54:39 2020 (r524842) @@ -0,0 +1,23 @@ +heapdict implements the MutableMapping ABC, meaning it works pretty much like a +regular Python dict. It's designed to be used as a priority queue, where items +are added and consumed as follows: + + hd = heapdict() + hd[obj1] = priority1 + hd[obj2] = priority2 + # ... + (obj, priority) = hd.popitem() + +Compared to an ordinary dict, a heapdict has the following differences: +- popitem(): + Remove and return the (key, priority) pair with the lowest priority, instead + of a random object. +- peekitem(): + Return the (key, priority) pair with the lowest priority, without removing it. + +Unlike the Python standard library's heapq module, the heapdict supports +efficiently changing the priority of an existing object (often called "decrease- +key" in textbooks). Altering the priority is important for many algorithms such +as Dijkstra's Algorithm and A*. + +WWW: https://github.com/DanielStutzbach/heapdict
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