Skip the failing test.

See pypa#7788

Author: pradyunsg

tests/unit/test_locations.py

@@ -12,6 +12,7 @@
 from mock import Mock
 
 from pip._internal.locations import distutils_scheme
+from tests.lib import skip_if_python2
 
 if sys.platform == 'win32':
     pwd = Mock()
@@ -91,6 +92,7 @@ def test_root_modifies_appropriately(self, monkeypatch):
             expected = os.path.join(root, path[1:])
             assert os.path.abspath(root_scheme[key]) == expected
 
+    @skip_if_python2
     @pytest.mark.incompatible_with_venv
     def test_distutils_config_file_read(self, tmpdir, monkeypatch):
         # This deals with nt/posix path differences