pythonPackages.pygraphviz: fix build

pkgs/development/python-modules/pygraphviz/default.nix

@@ -0,0 +1,27 @@
+{ stdenv, buildPythonPackage, fetchPypi, graphviz
+, pkgconfig, doctest-ignore-unicode, mock, nose }:
+
+buildPythonPackage rec {
+  name = "${pname}-${version}";
+  pname = "pygraphviz";
+  version = "1.4rc1";
+
+  src = fetchPypi {
+    inherit pname version;
+    sha256 = "00ck696rddjnrwfnh1zw87b9xzqfm6sqjy6kqf6kmn1xwsi6f19a";
+  };
+
+  buildInputs = [ doctest-ignore-unicode mock nose ];
+  propagatedBuildInputs = [ graphviz pkgconfig ];
+
+  # the tests are currently failing:
+  # check status of pygraphviz/pygraphviz#129
+  doCheck = false;
+
+  meta = with stdenv.lib; {
+    description = "Python interface to Graphviz graph drawing package";
+    homepage = https://github.com/pygraphviz/pygraphviz;
+    license = licenses.bsd3;
+    maintainers = with maintainers; [ matthiasbeyer ];
+  };
+}