Prefer static methods over instance methods

micro_bench/cube_generator.py

@@ -65,7 +65,8 @@ class CubeGen:
         for (table_name, table_value) in tables.items():
             table_value.to_csv(os.path.join(os.path.join(cube_path, table_name + '.csv')), sep=";", index=False)
 
-    def remove_temp_cube(self):
+    @staticmethod
+    def remove_temp_cube():
         """
         remove the temporary cube
         """

olapy/core/mdx/executor/execute.py

@@ -460,7 +460,8 @@ class MdxEngine:
             'where': on_where
         }
 
-    def change_measures(self, tuples_on_mdx):
+    @staticmethod
+    def change_measures(tuples_on_mdx):
         """
         set measures to which exists in the query