fix black issue

Author: mahdis-z

Diff for: packages/python/plotly/plotly/tests/test_core/test_update_objects/test_update_annotations.py

@@ -243,7 +243,7 @@ def test_update_shapes(self):
 
     def test_shape_attributes(self):
 
-        self.fig.add_shape(fillcolor='blue', opacity=0.3)
+        self.fig.add_shape(fillcolor="blue", opacity=0.3)
         self.fig.update_shapes(fillcolor="red")
 
     def test_update_images(self):
@@ -265,5 +265,5 @@ def test_update_images(self):
         self.assert_update("images", [4], patch=dict(opacity=0), secondary_y=True)
 
     def test_image_attributes(self):
-        self.fig.add_layout_image(name='my name', x=1, y=2)
+        self.fig.add_layout_image(name="my name", x=1, y=2)
         self.fig.update_layout_images(opacity=0.1)