python.pkgs.restructuredtext_lint: does not support Python 3.7 yet

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

@@ -1,33 +1,34 @@
 { lib
 , buildPythonPackage
 , fetchPypi
+, isPy37
 , docutils
 , nose
-, stdenv
-, flake8
-, pyyaml
 , testtools
 }:
 
 buildPythonPackage rec {
   pname = "restructuredtext_lint";
   version = "1.2.2";
 
+  # https://github.com/twolfson/restructuredtext-lint/pull/47
+  disabled = isPy37;
+
   src = fetchPypi {
     inherit pname version;
     sha256 = "82880a8de8a41bfc84f533744091b1ead8e2ab9ad6c0a3f60f4750ef6c802350";
   };
 
-  checkInputs = [ nose flake8 pyyaml testtools ];
+  checkInputs = [ nose testtools ];
   propagatedBuildInputs = [ docutils ];
 
   checkPhase = ''
-     ${stdenv.shell} test.sh
+    nosetests --nocapture
   '';
 
   meta = {
     description = "reStructuredText linter";
     homepage = https://github.com/twolfson/restructuredtext-lint;
     license = lib.licenses.unlicense;
   };
-}
+}