python-packages: Add package 'sure', v1.2.7.

Unfortunately the upstream version that can be found on PyPI doesn't
include test cases, so we need to fetchgit and wait until tests will be
shipped with a future upstream release.

Reported at gabrielfalcao/sure#61.

Signed-off-by: aszlig <aszlig@redmoonstudios.org>

pkgs/top-level/python-packages.nix

@@ -7554,6 +7554,30 @@ rec {
     };
   };
 
+
+  sure = buildPythonPackage rec {
+    name = "sure-${version}";
+    version = "1.2.7";
+
+    # Not picking up from PyPI because it doesn't contain tests.
+    src = fetchgit {
+      url = "git://github.com/gabrielfalcao/sure.git";
+      rev = "86ab9faa97aa9c1720c7d090deac2be385ed3d7a";
+      sha256 = "02vffcdgr6vbj80lhl925w7zqy6cqnfvs088i0rbkjs5lxc511b3";
+    };
+
+    buildInputs = [ nose ];
+
+    propagatedBuildInputs = [ six mock ];
+
+    meta = {
+      description = "Utility belt for automated testing";
+      homepage = "http://falcao.it/sure/";
+      license = licenses.gpl3Plus;
+    };
+  };
+
+
   # XXX: ValueError: ZIP does not support timestamps before 1980
   # svneverever =  buildPythonPackage rec {
   #   name = "svneverever-778489a8";