gnu: python-tzlocal: Update to 1.5.1.

* gnu/packages/time.scm (python-tzlocal): Update to 1.5.1.
[arguments]: Add custom phase to fix symlink issue in pypi release.
[native-inputs]: Add python-mock.
[license]: Update to expat.

gnu/packages/time.scm

@@ -2,7 +2,7 @@
 ;;; Copyright © 2012 Nikita Karetnikov <nikita@karetnikov.org>
 ;;; Copyright © 2013, 2017 Ludovic Courtès <ludo@gnu.org>
 ;;; Copyright © 2013, 2015 Andreas Enge <andreas@enge.fr>
-;;; Copyright © 2015, 2016, 2017, 2018 Efraim Flashner <efraim@flashner.co.il>
+;;; Copyright © 2015, 2016, 2017, 2018, 2019 Efraim Flashner <efraim@flashner.co.il>
 ;;; Copyright © 2015, 2017 Leo Famulari <leo@famulari.name>
 ;;; Copyright © 2015, 2017 Cyril Roelandt <tipecaml@gmail.com>
 ;;; Copyright © 2016 Sou Bunnbu <iyzsong@gmail.com>
@@ -198,17 +198,29 @@ datetime module, available in Python 2.3+.")
 (define-public python-tzlocal
   (package
     (name "python-tzlocal")
-    (version "1.2.2")
+    (version "1.5.1")
     (source
      (origin
        (method url-fetch)
        (uri (pypi-uri "tzlocal" version))
        (sha256
         (base32
-         "0paj7vlsb0np8b5sp4bv64wxv7qk2piyp7xg29pkhdjwsbls9fnb"))))
+         "0kiciwiqx0bv0fbc913idxibc4ygg4cb7f8rcpd9ij2shi4bigjf"))))
     (build-system python-build-system)
+    (arguments
+     `(#:phases
+       (modify-phases %standard-phases
+         (add-before 'check 'fix-symlink-test
+           ;; see: https://github.com/regebro/tzlocal/issues/53
+           (lambda _
+             (delete-file "tzlocal/test_data/symlink_localtime/etc/localtime")
+             (symlink "../usr/share/zoneinfo/Africa/Harare"
+                      "tzlocal/test_data/symlink_localtime/etc/localtime")
+             #t)))))
     (propagated-inputs
      `(("python-pytz" ,python-pytz)))
+    (native-inputs
+     `(("python-mock" ,python-mock)))
     (home-page "https://github.com/regebro/tzlocal")
     (synopsis "Local timezone information for Python")
     (description
@@ -216,7 +228,7 @@ datetime module, available in Python 2.3+.")
 This module attempts to fix a glaring hole in pytz, that there is no way to
 get the local timezone information, unless you know the zoneinfo name, and
 under several distributions that's hard or impossible to figure out.")
-    (license cc0)))
+    (license expat)))
 
 (define-public python-isodate
   (package