gnu: Add python-branca.

* gnu/packages/python-web.scm (python-branca): New variable.

gnu/packages/python-web.scm

@@ -24,7 +24,7 @@
 ;;; Copyright © 2015, 2016 David Thompson <davet@gnu.org>
 ;;; Copyright © 2017 Mark Meyer <mark@ofosos.org>
 ;;; Copyright © 2018 Tomáš Čech <sleep_walker@gnu.org>
-;;; Copyright © 2018 Nicolas Goaziou <mail@nicolasgoaziou.fr>
+;;; Copyright © 2018, 2019 Nicolas Goaziou <mail@nicolasgoaziou.fr>
 ;;; Copyright © 2018 Mathieu Othacehe <m.othacehe@gmail.com>
 ;;; Copyright © 2018 Maxim Cournoyer <maxim.cournoyer@gmail.com>
 ;;; Copyright © 2019 Vagrant Cascadian <vagrant@debian.org>
@@ -3248,3 +3248,26 @@ Python.")
     (description "This package provides a @command{slufigy} command and
 library to create slugs from unicode strings while keeping it DRY.")
     (license license:expat)))
+
+(define-public python-branca
+  (package
+    (name "python-branca")
+    (version "0.3.1")
+    (source
+     (origin
+       (method url-fetch)
+       (uri (pypi-uri "branca" version))
+       (sha256
+        (base32
+         "0pmigd521j2228xf8x34vbx0niwvms7xl7za0lymywj0vydjqxiy"))))
+    (build-system python-build-system)
+    (propagated-inputs
+     `(("python-jinja2" ,python-jinja2)
+       ("python-six" ,python-six)))
+    (native-inputs
+     `(("python-pytest" ,python-pytest)))
+    (home-page "https://github.com/python-visualization/branca")
+    (synopsis "Generate complex HTML+JS pages with Python")
+    (description "Generate complex HTML+JS pages with Python")
+    (license license:expat)))
+