[bug#55390] [PATCH] gnu: Add python-cymem

["Artyom V. Poptsov" <poptsov.artyom@gmail.com>]

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Hello,

this patch adds cymem[1] under the name 'python-cymem'.

- Artyom

1: https://github.com/explosion/cymem

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From 4acef69146d41714e9912fb1576f6f64b267eaa2 Mon Sep 17 00:00:00 2001
From: "Artyom V. Poptsov" <poptsov.artyom@gmail.com>
Date: Thu, 12 May 2022 22:43:29 +0300
Subject: [PATCH] gnu: Add python-cymem

* gnu/packages/python-xyz.scm (python-cymem): New variable.
---
 gnu/packages/python-xyz.scm | 44 +++++++++++++++++++++++++++++++++++++
 1 file changed, 44 insertions(+)

diff --git a/gnu/packages/python-xyz.scm b/gnu/packages/python-xyz.scm
index fdfdd3fef3..421a298ccd 100644
--- a/gnu/packages/python-xyz.scm
+++ b/gnu/packages/python-xyz.scm
@@ -121,6 +121,7 @@
 ;;; Copyright © 2022 Peter Polidoro <peter@polidoro.io>
 ;;; Copyright © 2022 Wamm K. D. <jaft.r@outlook.com>
 ;;; Copyright © 2022 Jai Vetrivelan <jaivetrivelan@gmail.com>
+;;; Copyright © 2022 Artyom V. Poptsov <poptsov.artyom@gmail.com>
 ;;;
 ;;; This file is part of GNU Guix.
 ;;;
@@ -31150,3 +31151,46 @@ object, which can be useful if you want to force your objects into a table.")
      "The @code{deep-merge} Python library provides a toolset to deeply merge
 nested data structures in Python like lists and dictionaries.")
     (license license:expat)))
+
+(define-public python-cymem
+    (package
+  (name "python-cymem")
+  (version "2.0.6")
+  (source (origin
+            (method url-fetch)
+            (uri (pypi-uri "cymem" version))
+            (sha256
+             (base32
+              "0pkyy60zk9654sj991w111p1l0m8wvz36nslw96x6nb9h6sjb5qn"))))
+  (build-system python-build-system)
+  (native-inputs
+   (list python-cython
+         python-pytest))
+  (inputs
+   (list python))
+  (arguments
+   (list
+    #:modules '((ice-9 ftw)
+                (ice-9 match)
+                (guix build utils)
+                (guix build python-build-system))
+    #:phases
+    #~(modify-phases %standard-phases
+        (add-after 'unpack 'set-source-file-times-to-1980
+          ;; XXX One of the tests uses a ZIP library to pack up some of the
+          ;; source tree, and fails with "ZIP does not support timestamps
+          ;; before 1980".  Work around this by setting the file times in the
+          ;; source tree to sometime in early 1980.
+          (lambda _
+            (let ((circa-1980 (* 10 366 24 60 60)))
+              (ftw "." (lambda (file stat flag)
+                         (utime file circa-1980 circa-1980)
+                         #t))))))))
+  (home-page "https://github.com/explosion/cymem")
+  (synopsis "Cython memory pool for RAII-style memory management")
+  (description
+   "Cymem provides two small memory-management helpers for Cython.  They make it
+easy to tie memory to a Python object's life-cycle, so that the memory is freed
+when the object is garbage collected.")
+  (license license:expat)))
+
-- 
2.25.1


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-- 
Artyom "avp" Poptsov <poptsov.artyom@gmail.com>
Home page: https://memory-heap.org/~avp/
CADR Hackerspace co-founder: https://cadrspace.ru/
GPG: D0C2 EAC1 3310 822D 98DE  B57C E9C5 A2D9 0898 A02F

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