python.pkgs.html5lib: disable certain tests

due to pytest change

pkgs/development/python-modules/html5lib/default.nix

@@ -24,6 +24,9 @@ buildPythonPackage rec {
   ];
 
   checkPhase = ''
+    # remove test causing error
+    # https://github.com/html5lib/html5lib-python/issues/411
+    rm html5lib/tests/test_stream.py
     py.test
   '';