svn commit: r524842 - in head/devel: . py-heapdict
Sunpoet Po-Chuan Hsieh
sunpoet at FreeBSD.org
Sun Feb 2 10:54:40 UTC 2020
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 at FreeBSD.org>
+# $FreeBSD$
+
+PORTNAME= heapdict
+PORTVERSION= 1.0.1
+CATEGORIES= devel python
+MASTER_SITES= CHEESESHOP
+PKGNAMEPREFIX= ${PYTHON_PKGNAMEPREFIX}
+DISTNAME= HeapDict-${PORTVERSION}
+
+MAINTAINER= sunpoet at 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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