diff --git a/examples/opensora_hpcai/opensora/models/vae/lpips.py b/examples/opensora_hpcai/opensora/models/vae/lpips.py
index 53c91c4ba3..e8d29363fd 100644
--- a/examples/opensora_hpcai/opensora/models/vae/lpips.py
+++ b/examples/opensora_hpcai/opensora/models/vae/lpips.py
@@ -6,11 +6,12 @@
 import mindspore as ms
 import mindspore.nn as nn
 import mindspore.ops as ops
-from mindone.utils.params import load_from_pretrained
 
+from mindone.utils.params import load_from_pretrained
 
 _logger = logging.getLogger(__name__)
 
+
 class LPIPS(nn.Cell):
     # Learned perceptual metric
     def __init__(self, use_dropout=True):
diff --git a/mindone/utils/params.py b/mindone/utils/params.py
index cff045be7a..ead1b65b92 100644
--- a/mindone/utils/params.py
+++ b/mindone/utils/params.py
@@ -3,6 +3,8 @@
 import re
 from typing import List, Optional, Union
 
+from mindcv.utils.download import Download
+
 import mindspore as ms
 import mindspore.nn as nn
 from mindspore import Parameter
@@ -10,12 +12,11 @@
 
 # from mindspore._checkparam import Validator
 from mindspore.train.serialization import _load_dismatch_prefix_params, _update_param
-from mindcv.utils.download import Download
 
 
 def is_url(string):
     # Regex to check for URL patterns
-    url_pattern = re.compile(r'^(http|https|ftp)://')
+    url_pattern = re.compile(r"^(http|https|ftp)://")
     return bool(url_pattern.match(string))
 
 
@@ -111,9 +112,9 @@ def load_from_pretrained(
     checkpoint: Union[str, dict],
     ignore_net_params_not_loaded=False,
     ensure_all_ckpt_params_loaded=False,
-    cache_dir: str=None,
+    cache_dir: str = None,
 ):
-    """ load checkpoint into network.
+    """load checkpoint into network.
 
     Args:
         net: network