diff --git a/mindinsight/lineagemgr/common/validator/model_parameter.py b/mindinsight/lineagemgr/common/validator/model_parameter.py
index d4ee016b..c85ade6c 100644
--- a/mindinsight/lineagemgr/common/validator/model_parameter.py
+++ b/mindinsight/lineagemgr/common/validator/model_parameter.py
@@ -226,7 +226,7 @@ class SearchModelConditionParameter(Schema):
             if not isinstance(attr, str):
                 raise LineageParamValueError('The search attribute not supported.')
 
-            if attr not in FIELD_MAPPING and not attr.startswith(('metric/','user_defined/')):
+            if attr not in FIELD_MAPPING and not attr.startswith(('metric/', 'user_defined/')):
                 raise LineageParamValueError('The search attribute not supported.')
 
             if not isinstance(condition, dict):
diff --git a/mindinsight/lineagemgr/common/validator/validate.py b/mindinsight/lineagemgr/common/validator/validate.py
index 8883a2ce..07925870 100644
--- a/mindinsight/lineagemgr/common/validator/validate.py
+++ b/mindinsight/lineagemgr/common/validator/validate.py
@@ -354,9 +354,8 @@ def validate_condition(search_condition):
             log.error(err_msg)
             raise LineageParamValueError(err_msg)
         if not (sorted_name in FIELD_MAPPING
-            or (sorted_name.startswith('metric/') and len(sorted_name) > 7)
-            or (sorted_name.startswith('user_defined/') and len(sorted_name) > 13)
-        ):
+                or (sorted_name.startswith('metric/') and len(sorted_name) > 7)
+                or (sorted_name.startswith('user_defined/') and len(sorted_name) > 13)):
             log.error(err_msg)
             raise LineageParamValueError(err_msg)
 
@@ -429,4 +428,4 @@ def validate_user_defined_info(user_defined_info):
     all_keys = field_map | user_defined_keys
 
     if len(field_map) + len(user_defined_keys) != len(all_keys):
-        raise LineageParamValueError("There are some keys have defined in lineage.")
\ No newline at end of file
+        raise LineageParamValueError("There are some keys have defined in lineage.")
diff --git a/mindinsight/lineagemgr/summary/_summary_adapter.py b/mindinsight/lineagemgr/summary/_summary_adapter.py
index 1e99a6e9..21e18949 100644
--- a/mindinsight/lineagemgr/summary/_summary_adapter.py
+++ b/mindinsight/lineagemgr/summary/_summary_adapter.py
@@ -15,8 +15,8 @@
 """The converter between proto format event of lineage and dict."""
 import time
 
-from mindinsight.datavisual.proto_files.mindinsight_lineage_pb2 import LineageEvent, UserDefinedInfo
-from mindinsight.lineagemgr.common.exceptions.exceptions import LineageParamTypeError,\
+from mindinsight.datavisual.proto_files.mindinsight_lineage_pb2 import LineageEvent
+from mindinsight.lineagemgr.common.exceptions.exceptions import LineageParamTypeError, \
     LineageParamValueError
 from mindinsight.lineagemgr.common.log import logger as log
 
@@ -345,4 +345,4 @@ def _package_user_defined_info(user_defined_dict, user_defined_message):
         try:
             getattr(add_user_defined_info, attr_name)[key] = value
         except ValueError:
-            raise LineageParamValueError("Value is out of range or not be supported yet.")
\ No newline at end of file
+            raise LineageParamValueError("Value is out of range or not be supported yet.")
diff --git a/mindinsight/lineagemgr/summary/summary_record.py b/mindinsight/lineagemgr/summary/summary_record.py
index da56323f..0a53fb64 100644
--- a/mindinsight/lineagemgr/summary/summary_record.py
+++ b/mindinsight/lineagemgr/summary/summary_record.py
@@ -179,4 +179,4 @@ class LineageSummary:
         """
         self.event_writer.write_event_to_file(
             package_user_defined_info(user_dict).SerializeToString()
-        )
\ No newline at end of file
+        )
diff --git a/tests/st/func/lineagemgr/api/test_model_api.py b/tests/st/func/lineagemgr/api/test_model_api.py
index 8b2df937..8398b199 100644
--- a/tests/st/func/lineagemgr/api/test_model_api.py
+++ b/tests/st/func/lineagemgr/api/test_model_api.py
@@ -30,10 +30,9 @@ from mindinsight.lineagemgr import filter_summary_lineage, get_summary_lineage
 from mindinsight.lineagemgr.common.exceptions.exceptions import (LineageFileNotFoundError, LineageParamSummaryPathError,
                                                                  LineageParamTypeError, LineageParamValueError,
                                                                  LineageSearchConditionParamError)
-
 from ..conftest import BASE_SUMMARY_DIR, DATASET_GRAPH, SUMMARY_DIR, SUMMARY_DIR_2
 from .....ut.lineagemgr.querier import event_data
-from os import environ
+
 LINEAGE_INFO_RUN1 = {
     'summary_dir': os.path.join(BASE_SUMMARY_DIR, 'run1'),
     'metric': {