From: Arun Isaac <arunisaac@systemreboot.net>
To: guix-devel@gnu.org
Subject: [PATCH 4/5] gnu: Add python2-larch.
Date: Wed, 8 Mar 2017 23:28:34 +0530 [thread overview]
Message-ID: <20170308175835.19402-4-arunisaac@systemreboot.net> (raw)
In-Reply-To: <20170308175835.19402-1-arunisaac@systemreboot.net>
* gnu/packages/python.scm (python2-larch): New variable.
---
gnu/packages/python.scm | 31 +++++++++++++++++++++++++++++++
1 file changed, 31 insertions(+)
diff --git a/gnu/packages/python.scm b/gnu/packages/python.scm
index 70833773f..476b6f9bf 100644
--- a/gnu/packages/python.scm
+++ b/gnu/packages/python.scm
@@ -13515,3 +13515,34 @@ than using `logging.Filter` to accomplish the same thing, which
matters when code is run in production mode. The actual logging still
happens using the `logging` library.")
(license license:gpl3+)))
+
+(define-public python2-larch
+ (package
+ (name "python2-larch")
+ (version "1.20151025")
+ (source
+ (origin
+ (method url-fetch)
+ (uri (string-append
+ "http://git.liw.fi/cgi-bin/cgit/cgit.cgi/larch/snapshot/larch-"
+ version ".tar.gz"))
+ (sha256
+ (base32
+ "1p4knkkavlqymgciz2wbcnfrdgdbafhg14maplnk4vbw0q8xs663"))))
+ (build-system python-build-system)
+ (arguments
+ `(#:python ,python-2))
+ (propagated-inputs
+ `(("python2-tracing" ,python2-tracing)))
+ (home-page "https://liw.fi/larch/")
+ (synopsis "Python copy-on-write B-tree library")
+ (description "@code{python2-larch} is an implementation of
+particular kind of B-tree, based on research by Ohad Rodeh. See
+http://liw.fi/larch/ohad-btrees-shadowing-clones.pdf for details on
+the data structure.
+
+The distinctive feature of this B-tree is that a node is never
+(conceptually) modified. Instead, all updates are done by
+copy-on-write. This makes it easy to clone a tree, and modify only the
+clone, while other processes access the original tree.")
+ (license license:gpl3+)))
--
2.11.0
next prev parent reply other threads:[~2017-03-08 19:20 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-03-08 17:58 [PATCH 1/5] gnu: Add python2-cliapp Arun Isaac
2017-03-08 17:58 ` [PATCH 2/5] gnu: Add python2-ttystatus Arun Isaac
2017-03-08 17:58 ` [PATCH 3/5] gnu: Add python2-tracing Arun Isaac
2017-03-08 17:58 ` Arun Isaac [this message]
2017-03-08 17:58 ` [PATCH 5/5] gnu: Add obnam Arun Isaac
2017-03-09 16:23 ` Marius Bakke
2017-03-09 17:29 ` Arun Isaac
-- strict thread matches above, loose matches on Subject: below --
2017-03-08 10:12 [PATCH 1/5] gnu: Add python2-cliapp Arun Isaac
2017-03-08 10:12 ` [PATCH 4/5] gnu: Add python2-larch Arun Isaac
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