02/03: gnu: Add python-ilinkedlist.

[Ludovic Courtès]

civodul pushed a commit to branch master
in repository guix.

commit 16d212510aa597639ffe5a847503a07170e239cd
Author: Luther Thompson <address@hidden>
Date:   Sun Oct 21 23:45:52 2018 +0200

    gnu: Add python-ilinkedlist.
    
    * gnu/packages/python.scm (python-ilinkedlist): New variable.
---
 gnu/packages/python.scm | 26 ++++++++++++++++++++++++++
 1 file changed, 26 insertions(+)

diff --git a/gnu/packages/python.scm b/gnu/packages/python.scm
index 29ce213..9c74922 100644
--- a/gnu/packages/python.scm
+++ b/gnu/packages/python.scm
@@ -55,6 +55,7 @@
 ;;; Copyright © 2018 Oleg Pykhalov <address@hidden>
 ;;; Copyright © 2018 Clément Lassieur <address@hidden>
 ;;; Copyright © 2018 Maxim Cournoyer <address@hidden>
+;;; Copyright © 2018 Luther Thompson <address@hidden>
 ;;;
 ;;; This file is part of GNU Guix.
 ;;;
@@ -14504,3 +14505,28 @@ extend common interfaces like NumPy, Pandas, or Python 
iterators to
 larger-than-memory or distributed environments.  These parallel collections
 run on top of the dynamic task schedulers. ")
     (license license:bsd-3)))
+
+(define-public python-ilinkedlist
+  (package
+    (name "python-ilinkedlist")
+    (version "0.1.0")
+    (source
+     (origin
+       (method url-fetch)
+       (uri (pypi-uri "ilinkedlist" version))
+       (sha256
+        (base32
+         "063c2gm4jkgkv0nsg7mrc8y0w82ms98l4xchmbrvr68cscglhk69"))))
+    (build-system python-build-system)
+    (native-inputs `(("python-pytest" ,python-pytest)))
+    (inputs `(("python" ,python)))
+    (home-page "https://github.com/luther9/ilinkedlist-py";)
+    (synopsis "Immutable linked list library")
+    (description
+     "This is a implementation of immutable linked lists for Python.  It
+contains @code{nil} (the empty linked list) and a @code{Pair} class for nodes.
+Since a linked list is treated as immutable, it is hashable, and its length
+can be retrieved in constant time.  Some of the terminology is inspired by
+LISP.  It is possible to create an improper list by creating a @code{Pair}
+with a non-list @code{cdr}.")
+    (license license:gpl3+)))