From 063b33562c4fee2ea4e3fd1b53a27770047e9201 Mon Sep 17 00:00:00 2001
From: Federico Beffa <address@hidden>
Date: Sun, 26 Oct 2014 15:03:17 +0100
Subject: [PATCH 1/2] gnu: Add numpy

* gnu/packages/python.scm(python-numpy, python2-numpy): New variables.
---
 gnu/packages/python.scm | 112 ++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 112 insertions(+)

diff --git a/gnu/packages/python.scm b/gnu/packages/python.scm
index c995c1b..b39957a 100644
--- a/gnu/packages/python.scm
+++ b/gnu/packages/python.scm
@@ -37,6 +37,8 @@
   #:use-module (gnu packages pkg-config)
   #:use-module (gnu packages databases)
   #:use-module (gnu packages zip)
+  #:use-module (gnu packages maths)
+  #:use-module (gnu packages gcc)
   #:use-module (gnu packages multiprecision)
   #:use-module (guix packages)
   #:use-module (guix download)
@@ -1832,3 +1834,113 @@ sources.")
 
 (define-public python2-sphinx
   (package-with-python2 python-sphinx))
+
+(define python-numpy-reference
+  (origin
+    (method url-fetch)
+    (uri (string-append "mirror://sourceforge/numpy/reference.pdf"))
+    (sha256 
+     (base32
+      "0izsmzazhd042ra6p7as2jhwx8713sc5gpn9s5nifwm68biwn0lp"))))
+
+(define python-numpy-userguide
+  (origin
+    (method url-fetch)
+    (uri (string-append "mirror://sourceforge/numpy/userguide.pdf"))
+    (sha256 
+     (base32
+      "1z2xjlxldv01ad2775k9birg1hkqay5wbi5vmgz3rlr6dczvk77k"))))
+
+(define-public python-numpy
+  (package
+    (name "python-numpy")
+    (version "1.9.0")
+    (source
+     (origin
+       (method url-fetch)
+       (uri (string-append "mirror://sourceforge/numpy"
+                           "/numpy-" version ".tar.gz"))
+       (sha256
+        (base32
+         "1xbzsb84wg32zx5ilgvkdp0lwfqrycwhh5a2q9nx5iwyjpgcxrpp"))))
+    (build-system python-build-system)
+    (inputs
+     `(("python" ,python) ; otherwise ld does not find libpython3.3m
+       ("python-numpy-userguide" ,python-numpy-userguide)
+       ("python-numpy-reference" ,python-numpy-reference)
+       ("atlas" ,atlas)))
+    (native-inputs
+     `(("python-nose" ,python-nose)  ; used by tests
+       ("gfortran" ,gfortran-4.8)))
+    (outputs '("out" "doc"))         ; doc is ca. 9MB
+    (arguments
+     `(#:phases
+       (alist-replace
+        'build
+        (lambda* (#:key outputs inputs 
+                  #:allow-other-keys #:rest args)
+          (let* ((build (assoc-ref %standard-phases 'build))
+                 (atlas-threaded
+                  (string-append (assoc-ref inputs "atlas") 
+                                 "/lib/libtatlas.so"))
+                 ;; On single core CPUs only the serial library is created.
+                 (atlas-lib
+                  (if (file-exists? atlas-threaded)
+                      atlas-threaded
+                      (string-append (assoc-ref inputs "atlas") 
+                                     "/lib/libsatlas.so"))))
+            (setenv "ATLAS" atlas-lib)
+            (apply build args)))
+        (alist-cons-after
+         'install 'install-doc
+         (lambda* (#:key outputs inputs #:allow-other-keys)
+           ;; procedure from gnu-build-system.scm
+           (define (package-name)
+             (let* ((out  (assoc-ref outputs "out"))
+                    (base (basename out))
+                    (dash (string-rindex base #\-)))
+               (string-drop (if dash
+                                (substring base 0 dash)
+                                base)
+                            (+ 1 (string-index base #\-)))))
+
+           (let ((doc (string-append (assoc-ref outputs "doc") 
+                                     "/share/doc/" (package-name))))
+             (mkdir-p doc)
+             (and (zero? 
+                   (system* "cp" 
+                            (assoc-ref inputs "python-numpy-reference") 
+                            (string-append doc "/reference.pdf")))
+                  (zero? 
+                   (system* "cp" 
+                            (assoc-ref inputs "python-numpy-userguide")
+                            (string-append doc "/userguide.pdf"))))))
+         ;; Tests can only be run after the library has been installed and not
+         ;; within the source directory.
+         (alist-cons-after
+          'install 'check
+          (lambda _ 
+            (with-directory-excursion "/tmp"
+              (zero? (system* "python" "-c" "import numpy; numpy.test()"))))
+          (alist-delete 
+           'check 
+           %standard-phases))))))
+    (home-page "http://www.numpy.org/")
+    (synopsis "Fundamental package for scientific computing with Python")
+    (description "NumPy is the fundamental package for scientific computing
+with Python. It contains among other things: a powerful N-dimensional array
+object, sophisticated (broadcasting) functions, tools for integrating C/C++
+and Fortran code, useful linear algebra, Fourier transform, and random number
+capabilities.")
+    (license bsd-3)))
+
+(define-public python2-numpy
+  (package (inherit (package-with-python2 python-numpy))
+           ;; If we don't redefine the inputs here, then python (version 3) is
+           ;; also imported and its libraries come first in PYTHONPATH.  This
+           ;; causes the 'check phase to fail.
+           (inputs
+            `(("python-2" ,python-2) ; otherwise ld does not find libpython2.7
+              ("python-numpy-userguide" ,python-numpy-userguide)
+              ("python-numpy-reference" ,python-numpy-reference)
+              ("atlas" ,atlas)))))
-- 
1.8.4