Use is when comparing type of two objects (#10504)

Author: DimitriPapadopoulos

xarray/plot/utils.py

@@ -1143,7 +1143,7 @@ def _get_color_and_size(value):
         # Labels are not numerical so modifying label_values is not
         # possible, instead filter the array with nicely distributed
         # indexes:
-        if type(num) == int:  # noqa: E721
+        if type(num) is int:
             loc = mpl.ticker.LinearLocator(num)
         else:
             raise ValueError("`num` only supports integers for non-numeric labels.")

xarray/tests/test_units.py

@@ -5635,7 +5635,7 @@ def test_duck_array_ops(self):
 
         assert_units_equal(expected, actual)
         # Don't use isinstance b/c we don't want to allow subclasses through
-        assert type(expected.data) == type(actual.data)  # noqa: E721
+        assert type(expected.data) is type(actual.data)
 
 
 @requires_matplotlib