ENH: black fix

Author: attack68

pandas/io/formats/style.py

@@ -966,12 +966,12 @@ def set_table_styles(self, table_styles, axis=0, overwrite=True) -> "Styler":
         ... }, axis=1, overwrite=False)
         """
         if isinstance(table_styles, dict):
-            if axis == 0 or axis == 'index':
+            if axis == 0 or axis == "index":
                 obj = self.data.columns
-                idf = '.col'
+                idf = ".col"
             else:
                 obj = self.data.index
-                idf = '.row'
+                idf = ".row"
 
             _styles = []
             for key, styles in table_styles.items():

pandas/tests/io/formats/test_style.py

@@ -1694,20 +1694,17 @@ def test_chaining_table_styles(self):
             [{"selector": "", "props": [("background-color", "yellow")]}]
         ).set_table_styles(
             [{"selector": ".col0", "props": [("background-color", "blue")]}],
-            overwrite=False
+            overwrite=False,
         )
         assert len(styler.table_styles) == 2
 
     def test_column_and_row_styling(self):
         df = pd.DataFrame(data=[[0, 1], [1, 2]], columns=["A", "B"])
         s = Styler(df, uuid="_")
-        s = s.set_table_styles(
-            {"A": [{"selector": "", "props": [("color", "blue")]}]}
-        )
+        s = s.set_table_styles({"A": [{"selector": "", "props": [("color", "blue")]}]})
         assert "#T__ .col0 {\n          color: blue;\n    }" in s.render()
         s = s.set_table_styles(
-            {0: [{"selector": "", "props": [("color", "blue")]}]},
-            axis=1
+            {0: [{"selector": "", "props": [("color", "blue")]}]}, axis=1
         )
         assert "#T__ .row0 {\n          color: blue;\n    }" in s.render()