diff --git a/colossalai/__init__.py b/colossalai/__init__.py
index f3882e962..697b73a74 100644
--- a/colossalai/__init__.py
+++ b/colossalai/__init__.py
@@ -1,5 +1,4 @@
-from .initialize import (initialize, launch, launch_from_openmpi,
-                         launch_from_slurm, launch_from_torch, get_default_parser)
+from .initialize import (initialize, launch, launch_from_openmpi, launch_from_slurm, launch_from_torch,
+                         get_default_parser)
 
 __version__ = '0.0.1'
-