diff --git a/python/tvm/meta_schedule/cost_model/cost_model.py b/python/tvm/meta_schedule/cost_model/cost_model.py
index 28242df0d5e0..e479cb725428 100644
--- a/python/tvm/meta_schedule/cost_model/cost_model.py
+++ b/python/tvm/meta_schedule/cost_model/cost_model.py
@@ -214,4 +214,4 @@ def __str__(self) -> str:
         result : str
             Get the cost model as string with name.
         """
-        return _get_default_str(self)
\ No newline at end of file
+        return _get_default_str(self)
diff --git a/python/tvm/meta_schedule/space_generator/space_generator.py b/python/tvm/meta_schedule/space_generator/space_generator.py
index e31c9becb5ac..4b7fff0283e0 100644
--- a/python/tvm/meta_schedule/space_generator/space_generator.py
+++ b/python/tvm/meta_schedule/space_generator/space_generator.py
@@ -122,4 +122,4 @@ def generate_design_space(self, mod: IRModule) -> List[Schedule]:
         design_spaces : List[Schedule]
             The generated design spaces, i.e., schedules.
         """
-        raise NotImplementedError
\ No newline at end of file
+        raise NotImplementedError