diff --git a/colossalai/context/process_group_initializer/initializer_data.py b/colossalai/context/process_group_initializer/initializer_data.py
index aa4e54148..0b8b0d91f 100644
--- a/colossalai/context/process_group_initializer/initializer_data.py
+++ b/colossalai/context/process_group_initializer/initializer_data.py
@@ -20,6 +20,7 @@ class Initializer_Data(ProcessGroupInitializer):
         pipeline_parallel_size (int): Size of pipeline parallel.
         tensor_parallel_size (int): Size of tensor parallel.
     """
+
     def __init__(self, *args, **kwargs):
         super().__init__(*args, **kwargs)
         self.num_data_parallel_group = self.world_size // self.data_parallel_size