gnu: Add python-django.

* gnu/packages/django.scm: New file.
* gnu/packages/patches/python-django-fix-testcase.patch: New file.
* gnu/local.mk (GNU_SYSTEM_MODULES): Add django.scm.
(dist_patch_DATA): Add python-django-fix-testcase.patch.

Co-authored-by: Ludovic Courtès <ludo@gnu.org>

gnu/local.mk

@@ -97,6 +97,7 @@ GNU_SYSTEM_MODULES =				\
   %D%/packages/dillo.scm			\
   %D%/packages/disk.scm				\
   %D%/packages/display-managers.scm		\
+  %D%/packages/django.scm			\
   %D%/packages/djvu.scm				\
   %D%/packages/dns.scm				\
   %D%/packages/docbook.scm			\
@@ -481,8 +482,8 @@ dist_patch_DATA =						\
   %D%/packages/patches/dbus-helper-search-path.patch		\
   %D%/packages/patches/devil-CVE-2009-3994.patch		\
   %D%/packages/patches/devil-fix-libpng.patch			\
-  %D%/packages/patches/diffutils-gets-undeclared.patch		\
   %D%/packages/patches/dfu-programmer-fix-libusb.patch		\
+  %D%/packages/patches/diffutils-gets-undeclared.patch		\
   %D%/packages/patches/doc++-include-directives.patch		\
   %D%/packages/patches/doc++-segfault-fix.patch			\
   %D%/packages/patches/doxygen-test.patch			\
@@ -764,6 +765,7 @@ dist_patch_DATA =						\
   %D%/packages/patches/python-3-search-paths.patch		\
   %D%/packages/patches/python-dendropy-exclude-failing-tests.patch \
   %D%/packages/patches/python-disable-ssl-test.patch		\
+  %D%/packages/patches/python-django-fix-testcase.patch		\
   %D%/packages/patches/python-fix-tests.patch			\
   %D%/packages/patches/python-ipython-inputhook-ctype.patch	\
   %D%/packages/patches/python-rarfile-fix-tests.patch		\

gnu/packages/django.scm

@@ -0,0 +1,98 @@
+;;; GNU Guix --- Functional package management for GNU
+;;; Copyright © 2016 Hartmut Goebel <h.goebel@crazy-compilers.com>
+;;;
+;;; This file is part of GNU Guix.
+;;;
+;;; GNU Guix is free software; you can redistribute it and/or modify it
+;;; under the terms of the GNU General Public License as published by
+;;; the Free Software Foundation; either version 3 of the License, or (at
+;;; your option) any later version.
+;;;
+;;; GNU Guix is distributed in the hope that it will be useful, but
+;;; WITHOUT ANY WARRANTY; without even the implied warranty of
+;;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+;;; GNU General Public License for more details.
+;;;
+;;; You should have received a copy of the GNU General Public License
+;;; along with GNU Guix.  If not, see <http://www.gnu.org/licenses/>.
+
+(define-module (gnu packages django)
+  #:use-module ((guix licenses) #:prefix license:)
+  #:use-module (guix packages)
+  #:use-module (guix download)
+  #:use-module (guix build-system python)
+  #:use-module (gnu packages)
+  #:use-module (gnu packages base)
+  #:use-module (gnu packages python))
+
+(define-public python-django
+  (package
+    (name "python-django")
+    (version "1.10")
+    (source (origin
+              (method url-fetch)
+              (uri (pypi-uri "Django" version))
+              (sha256
+               (base32
+                "01bh5yra6zyxcpqacahbwfbn0y4ivw07j2jsw3crvmjzivb6if26"))
+              (patches (search-patches "python-django-fix-testcase.patch"))))
+    (build-system python-build-system)
+    (arguments
+     '(#:phases
+       (modify-phases %standard-phases
+         (add-before 'check 'set-tzdir
+           (lambda* (#:key inputs #:allow-other-keys)
+             ;; The test-suite tests timezone-dependent functions, thus tzdata
+             ;; needs to be available.
+             (setenv "TZDIR"
+                     (string-append (assoc-ref inputs "tzdata")
+                                    "/share/zoneinfo"))
+             #t))
+         (replace 'check
+           (lambda _
+             (setenv "PYTHONPATH"
+                     (string-append ".:" (getenv "PYTHONPATH")))
+             (zero? (system* "python" "tests/runtests.py")))))))
+    ;; TODO: Install extras/django_bash_completion.
+    (native-inputs
+     ;; Django uses 'pkg_resources' (part of setuptools) to locate templates
+     ;; at run-time.
+     `(("python-setuptools" ,python-setuptools)
+       ("tzdata", tzdata)))
+    (propagated-inputs
+     `( ;; bcrypt and argon2-cffi are extra requirements not yet in guix
+       ;;("python-argon2-cffi" ,python-argon2-cffi) ; >= 16.1.0
+       ;;("python-bcrypt" ,python-bcrypt) ; not py-bcrypt!
+       ;; Taken from tests/requirements/py3.txt.
+       ("python-docutils" ,python-docutils)
+       ;; optional for tests: ("python-geoip2" ,python-geoip2)
+       ("python-jinja2" ,python-jinja2)           ; >= 2.7
+       ;; optional for tests: ("python-memcached" ,python-memcached)
+       ("python-numpy" ,python-numpy)
+       ("python-pillow" ,python-pillow)
+       ("python-pyyaml" ,python-pyyaml)
+       ("python-pytz" ,python-pytz)
+       ;; optional for tests: ("python-selenium" ,python-selenium)
+       ("python-sqlparse" ,python-sqlparse)
+       ("python-tblib" ,python-tblib)))
+    (home-page "http://www.djangoproject.com/")
+    (synopsis "High-level Python Web framework")
+    (description
+     "Django is a high-level Python Web framework that encourages rapid
+development and clean, pragmatic design.  It provides many tools for building
+any Web site.  Django focuses on automating as much as possible and adhering
+to the @dfn{don't repeat yourself} (DRY) principle.")
+    (license license:bsd-3)
+    (properties `((python2-variant . ,(delay python2-django))))))
+
+(define-public python2-django
+  (let ((base (package-with-python2 (strip-python2-variant python-django))))
+    (package
+      (inherit base)
+      (propagated-inputs
+       `(;; Required for Python 2: enum34 and mock.
+         ("python2-enum34" ,python2-enum34)
+         ("python2-mock" ,python2-mock)
+         ;; When adding memcached mind: for Python 2 memcached <= 1.53 is
+         ;; required.
+         ,@(package-inputs base))))))