More lint

shoyer · shoyer · commit 8bbf70c8ef16 · 2018-05-20T22:04:43.000-10:00
diff --git a/xarray/tests/test_backends.py b/xarray/tests/test_backends.py
@@ -1613,7 +1613,7 @@ def test_encoding_kwarg_vlen_string(self):
         original = Dataset({'x': [u'foo', u'bar', u'baz']})
         kwargs = dict(encoding={'x': {'dtype': str}})
         with raises_regex(ValueError, 'encoding dtype=str for vlen'):
-            with self.roundtrip(original, save_kwargs=kwargs) as actual:
+            with self.roundtrip(original, save_kwargs=kwargs):
                 pass
 
 
