diff --git a/python/infinity_embedded/__init__.py b/python/infinity_embedded/__init__.py
index 4b039c492..764f6a567 100644
--- a/python/infinity_embedded/__init__.py
+++ b/python/infinity_embedded/__init__.py
@@ -1,4 +1,4 @@
-# Copyright(C) 2023 InfiniFlow, Inc. All rights reserved.
+# Copyright(C) 2024 InfiniFlow, Inc. All rights reserved.
 #
 # Licensed under the Apache License, Version 2.0 (the "License");
 # you may not use this file except in compliance with the License.
@@ -20,12 +20,14 @@
 # import pkg_resources
 # __version__ = pkg_resources.get_distribution("infinity_sdk").version
 
-from infinity_embedded.common import URI, NetworkAddress, LOCAL_HOST, LOCAL_INFINITY_PATH, InfinityException, LOCAL_INFINITY_CONFIG_PATH
+from infinity_embedded.common import URI, NetworkAddress, LOCAL_HOST, LOCAL_INFINITY_PATH, InfinityException, \
+    LOCAL_INFINITY_CONFIG_PATH
 from infinity_embedded.infinity import InfinityConnection
 from infinity_embedded.local_infinity.infinity import LocalInfinityConnection
 from infinity_embedded.errors import ErrorCode
 
-def connect(uri = LOCAL_INFINITY_PATH, config_path = LOCAL_INFINITY_CONFIG_PATH) -> InfinityConnection:
+
+def connect(uri=LOCAL_INFINITY_PATH, config_path=LOCAL_INFINITY_CONFIG_PATH) -> InfinityConnection:
     if isinstance(uri, str) and len(uri) != 0:
         return LocalInfinityConnection(uri, config_path)
     else:
diff --git a/python/infinity_embedded/common.py b/python/infinity_embedded/common.py
index d956f5c28..a0d2e5fb8 100644
--- a/python/infinity_embedded/common.py
+++ b/python/infinity_embedded/common.py
@@ -1,4 +1,4 @@
-# Copyright(C) 2023 InfiniFlow, Inc. All rights reserved.
+# Copyright(C) 2024 InfiniFlow, Inc. All rights reserved.
 #
 # Licensed under the Apache License, Version 2.0 (the "License");
 # you may not use this file except in compliance with the License.
@@ -11,6 +11,7 @@
 # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 # See the License for the specific language governing permissions and
 # limitations under the License.
+
 from pathlib import Path
 from typing import Union
 from dataclasses import dataclass
@@ -75,10 +76,12 @@ class ConflictType(object):
     Error = 1
     Replace = 2
 
+
 class SortType(object):
     Asc = 0
     Desc = 1
 
+
 class InfinityException(Exception):
     def __init__(self, error_code=0, error_message=None):
         self.error_code = error_code
diff --git a/python/infinity_embedded/db.py b/python/infinity_embedded/db.py
index 1e1693c89..930924397 100644
--- a/python/infinity_embedded/db.py
+++ b/python/infinity_embedded/db.py
@@ -1,4 +1,4 @@
-# Copyright(C) 2023 InfiniFlow, Inc. All rights reserved.
+# Copyright(C) 2024 InfiniFlow, Inc. All rights reserved.
 #
 # Licensed under the Apache License, Version 2.0 (the "License");
 # you may not use this file except in compliance with the License.
@@ -14,6 +14,7 @@
 
 from abc import ABC, abstractmethod
 
+
 class Database(ABC):
 
     @abstractmethod
diff --git a/python/infinity_embedded/errors.py b/python/infinity_embedded/errors.py
index 1e482d3eb..a40d15f38 100644
--- a/python/infinity_embedded/errors.py
+++ b/python/infinity_embedded/errors.py
@@ -1,4 +1,4 @@
-# Copyright(C) 2023 InfiniFlow, Inc. All rights reserved.
+# Copyright(C) 2024 InfiniFlow, Inc. All rights reserved.
 #
 # Licensed under the Apache License, Version 2.0 (the "License");
 # you may not use this file except in compliance with the License.
@@ -117,6 +117,15 @@ class ErrorCode(IntEnum):
     INVALID_EXPLAIN_TYPE = 3081,
     CHUNK_NOT_EXIST = 3082,
     NAME_MISMATCHED = 3083,
+    TRANSACTION_NOT_FOUND = 3084,
+    INVALID_DATABASE_INDEX = 3085,
+    INVALID_TABLE_INDEX = 3086,
+    FUNCTION_IS_DISABLE = 3087,
+    NOT_FOUND = 3088,
+    ERROR_INIT = 3089,
+    FILE_IS_OPEN = 3090,
+    UNKNOWN = 3091,
+    INVALID_QUERY_OPTION = 3092,
 
     TXN_ROLLBACK = 4001,
     TXN_CONFLICT = 4002,
@@ -126,6 +135,7 @@ class ErrorCode(IntEnum):
     TOO_MANY_CONNECTIONS = 5003,
     CONFIGURATION_LIMIT_EXCEED = 5004,
     QUERY_IS_TOO_COMPLEX = 5005,
+    FAIL_TO_GET_SYS_INFO = 5006,
 
     QUERY_CANCELLED = 6001,
     QUERY_NOT_SUPPORTED = 6002,
@@ -147,7 +157,26 @@ class ErrorCode(IntEnum):
     MUNMAP_FILE_ERROR = 7014,
     INVALID_FILE_FLAG = 7015,
     INVALID_SERVER_ADDRESS = 7016,
+    FAIL_TO_FUN_PYTHON = 7017,
+    CANT_CONNECT_SERVER = 7018,
+    NOT_EXIST_NODE = 7019,
+    DUPLICATE_NODE = 7020,
+    CANT_CONNECT_LEADER = 7021,
+    MINIO_INVALID_ACCESS_KEY = 7022,
+    MINIO_BUCKET_NOT_EXISTS = 7023,
+    INVALID_STORAGE_TYPE = 7024,
+    NOT_REGISTERED = 7025,
+    CANT_SWITCH_ROLE = 7026,
+    TOO_MANY_FOLLOWER = 7027,
+    TOO_MANY_LEARNER = 7028,
 
     INVALID_ENTRY = 8001,
-    NOT_FOUND_ENTRY = 8002,
-    EMPTY_ENTRY_LIST = 8003,
+    DUPLICATE_ENTRY = 8002
+    NOT_FOUND_ENTRY = 8003,
+    EMPTY_ENTRY_LIST = 8004,
+    NO_WAL_ENTRY_FOUND = 8005,
+    WRONG_CHECKPOINT_TYPE = 8006,
+    INVALID_NODE_ROLE = 8007,
+    INVALID_NODE_STATUS = 8008,
+    NODE_INFO_UPDATED = 8009,
+    NODE_NAME_MISMATCH = 8010
diff --git a/python/infinity_embedded/index.py b/python/infinity_embedded/index.py
index 1620ceb64..392185c27 100644
--- a/python/infinity_embedded/index.py
+++ b/python/infinity_embedded/index.py
@@ -1,4 +1,4 @@
-# Copyright(C) 2023 InfiniFlow, Inc. All rights reserved.
+# Copyright(C) 2024 InfiniFlow, Inc. All rights reserved.
 #
 # Licensed under the Apache License, Version 2.0 (the "License");
 # you may not use this file except in compliance with the License.
@@ -18,7 +18,6 @@
 
 from infinity_embedded.embedded_infinity_ext import IndexType as LocalIndexType, WrapIndexInfo
 from infinity_embedded.embedded_infinity_ext import InitParameter as LocalInitParameter
-from infinity_embedded.embedded_infinity_ext import WrapIndexInfo as LocalIndexInfo
 from infinity_embedded.errors import ErrorCode
 
 
diff --git a/python/infinity_embedded/infinity.py b/python/infinity_embedded/infinity.py
index 125192562..8b40e0818 100644
--- a/python/infinity_embedded/infinity.py
+++ b/python/infinity_embedded/infinity.py
@@ -1,4 +1,4 @@
-# Copyright(C) 2023 InfiniFlow, Inc. All rights reserved.
+# Copyright(C) 2024 InfiniFlow, Inc. All rights reserved.
 #
 # Licensed under the Apache License, Version 2.0 (the "License");
 # you may not use this file except in compliance with the License.
@@ -11,8 +11,10 @@
 # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 # See the License for the specific language governing permissions and
 # limitations under the License.
+
 from abc import ABC, abstractmethod
 
+
 # abstract class
 class InfinityConnection(ABC):
     def __init__(self, uri):
diff --git a/python/infinity_embedded/local_infinity/client.py b/python/infinity_embedded/local_infinity/client.py
index dfffc126c..82f322ab2 100644
--- a/python/infinity_embedded/local_infinity/client.py
+++ b/python/infinity_embedded/local_infinity/client.py
@@ -1,4 +1,4 @@
-# Copyright(C) 2023 InfiniFlow, Inc. All rights reserved.
+# Copyright(C) 2024 InfiniFlow, Inc. All rights reserved.
 #
 # Licensed under the Apache License, Version 2.0 (the "License");
 # you may not use this file except in compliance with the License.
@@ -22,7 +22,8 @@ class LocalQueryResult:
     def __init__(self, error_code: PyErrorCode, error_msg: str, db_names=None, table_names=None, index_names=None,
                  column_defs=None, column_fields=None, database_name=None, store_dir=None, table_count=None,
                  comment=None,
-                 table_name=None, index_name=None, index_type=None, index_comment=None, deleted_rows=0, extra_result=None):
+                 table_name=None, index_name=None, index_type=None, index_comment=None, deleted_rows=0,
+                 extra_result=None):
         self.error_code = error_code
         self.error_msg = error_msg
         self.db_names = db_names
@@ -44,7 +45,7 @@ def __init__(self, error_code: PyErrorCode, error_msg: str, db_names=None, table
 
 
 class LocalInfinityClient:
-    def __init__(self, path: str = LOCAL_INFINITY_PATH, config_path = LOCAL_INFINITY_CONFIG_PATH):
+    def __init__(self, path: str = LOCAL_INFINITY_PATH, config_path=LOCAL_INFINITY_CONFIG_PATH):
         self.path = path
         Infinity.LocalInit(path, config_path)
         self.client = Infinity.LocalConnect()
diff --git a/python/infinity_embedded/local_infinity/db.py b/python/infinity_embedded/local_infinity/db.py
index d2835e3b1..81e030812 100644
--- a/python/infinity_embedded/local_infinity/db.py
+++ b/python/infinity_embedded/local_infinity/db.py
@@ -1,3 +1,17 @@
+# Copyright(C) 2024 InfiniFlow, Inc. All rights reserved.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#      https://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
 from abc import ABC
 
 from infinity_embedded.db import Database
diff --git a/python/infinity_embedded/local_infinity/infinity.py b/python/infinity_embedded/local_infinity/infinity.py
index 669a00757..9201def38 100644
--- a/python/infinity_embedded/local_infinity/infinity.py
+++ b/python/infinity_embedded/local_infinity/infinity.py
@@ -1,3 +1,17 @@
+# Copyright(C) 2024 InfiniFlow, Inc. All rights reserved.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#      https://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
 import os
 from infinity_embedded import InfinityConnection
 from abc import ABC
@@ -90,7 +104,6 @@ def show_current_node(self):
         else:
             raise InfinityException(res.error_code, res.error_msg)
 
-
     def search(self, db_name, table_name):
         self.check_connect()
         res = self._client.search(db_name, table_name, [])
diff --git a/python/infinity_embedded/local_infinity/query_builder.py b/python/infinity_embedded/local_infinity/query_builder.py
index 423882047..3e1967e23 100644
--- a/python/infinity_embedded/local_infinity/query_builder.py
+++ b/python/infinity_embedded/local_infinity/query_builder.py
@@ -1,3 +1,17 @@
+# Copyright(C) 2024 InfiniFlow, Inc. All rights reserved.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#      https://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
 from __future__ import annotations
 
 from abc import ABC
@@ -18,18 +32,19 @@
 from infinity_embedded.table import ExplainType as BaseExplainType
 from infinity_embedded.errors import ErrorCode
 
+
 class Query(ABC):
     def __init__(
-        self,
-        columns: Optional[List[WrapParsedExpr]],
-        highlight: Optional[List[WrapParsedExpr]],
-        search: Optional[WrapSearchExpr],
-        filter: Optional[WrapParsedExpr],
-        group_by: Optional[List[WrapParsedExpr]],
-        limit: Optional[WrapParsedExpr],
-        offset: Optional[WrapParsedExpr],
-        sort: Optional[List[WrapOrderByExpr]],
-        total_hits_count: Optional[bool]
+            self,
+            columns: Optional[List[WrapParsedExpr]],
+            highlight: Optional[List[WrapParsedExpr]],
+            search: Optional[WrapSearchExpr],
+            filter: Optional[WrapParsedExpr],
+            group_by: Optional[List[WrapParsedExpr]],
+            limit: Optional[WrapParsedExpr],
+            offset: Optional[WrapParsedExpr],
+            sort: Optional[List[WrapOrderByExpr]],
+            total_hits_count: Optional[bool]
     ):
         self.columns = columns
         self.highlight = highlight
@@ -44,16 +59,16 @@ def __init__(
 
 class ExplainQuery(Query):
     def __init__(
-        self,
-        columns: Optional[List[WrapParsedExpr]],
-        highlight: Optional[List[WrapParsedExpr]],
-        search: Optional[WrapSearchExpr],
-        filter: Optional[WrapParsedExpr],
-        group_by: Optional[List[WrapParsedExpr]],
-        limit: Optional[WrapParsedExpr],
-        offset: Optional[WrapParsedExpr],
-        sort: Optional[List[WrapOrderByExpr]],
-        explain_type: Optional[BaseExplainType],
+            self,
+            columns: Optional[List[WrapParsedExpr]],
+            highlight: Optional[List[WrapParsedExpr]],
+            search: Optional[WrapSearchExpr],
+            filter: Optional[WrapParsedExpr],
+            group_by: Optional[List[WrapParsedExpr]],
+            limit: Optional[WrapParsedExpr],
+            offset: Optional[WrapParsedExpr],
+            sort: Optional[List[WrapOrderByExpr]],
+            explain_type: Optional[BaseExplainType],
     ):
         super().__init__(columns, highlight, search, filter, group_by, limit, offset, sort, None)
         self.explain_type = explain_type
@@ -84,13 +99,13 @@ def reset(self):
         self._total_hits_count = None
 
     def match_dense(
-        self,
-        vector_column_name: str,
-        embedding_data: VEC,
-        embedding_data_type: str,
-        distance_type: str,
-        topn: int,
-        knn_params: {} = None,
+            self,
+            vector_column_name: str,
+            embedding_data: VEC,
+            embedding_data_type: str,
+            distance_type: str,
+            topn: int,
+            knn_params: {} = None,
     ) -> InfinityLocalQueryBuilder:
         if self._search is None:
             self._search = WrapSearchExpr()
@@ -108,7 +123,8 @@ def match_dense(
         if embedding_data_type == "bit":
             if len(embedding_data) % 8 != 0:
                 raise InfinityException(
-                    ErrorCode.INVALID_EMBEDDING_DATA_TYPE, f"Embeddings with data bit must have dimension of times of 8!"
+                    ErrorCode.INVALID_EMBEDDING_DATA_TYPE,
+                    f"Embeddings with data bit must have dimension of times of 8!"
                 )
             else:
                 new_embedding_data = []
@@ -174,7 +190,8 @@ def match_dense(
             elem_type = EmbeddingDataType.kElemBFloat16
             data.bf16_array_value = embedding_data
         else:
-            raise InfinityException(ErrorCode.INVALID_EMBEDDING_DATA_TYPE, f"Invalid embedding {embedding_data[0]} type")
+            raise InfinityException(ErrorCode.INVALID_EMBEDDING_DATA_TYPE,
+                                    f"Invalid embedding {embedding_data[0]} type")
 
         dist_type = KnnDistanceType.kInvalid
         if distance_type == "l2":
@@ -218,12 +235,12 @@ def match_dense(
         return self
 
     def match_sparse(
-        self,
-        vector_column_name: str,
-        sparse_data: SparseVector | dict,
-        metric_type: str,
-        topn: int,
-        opt_params: {} = None,
+            self,
+            vector_column_name: str,
+            sparse_data: SparseVector | dict,
+            metric_type: str,
+            topn: int,
+            opt_params: {} = None,
     ) -> InfinityLocalQueryBuilder:
         if self._search is None:
             self._search = WrapSearchExpr()
@@ -298,7 +315,7 @@ def match_sparse(
         return self
 
     def match_text(
-        self, fields: str, matching_text: str, topn: int, extra_options: Optional[dict]
+            self, fields: str, matching_text: str, topn: int, extra_options: Optional[dict]
     ) -> InfinityLocalQueryBuilder:
         if self._search is None:
             self._search = WrapSearchExpr()
@@ -324,12 +341,12 @@ def match_text(
         return self
 
     def match_tensor(
-        self,
-        column_name: str,
-        query_data: VEC,
-        query_data_type: str,
-        topn: int,
-        extra_option: Optional[dict] = None,
+            self,
+            column_name: str,
+            query_data: VEC,
+            query_data_type: str,
+            topn: int,
+            extra_option: Optional[dict] = None,
     ) -> InfinityLocalQueryBuilder:
         if self._search is None:
             self._search = WrapSearchExpr()
@@ -674,7 +691,7 @@ def to_result(self) -> tuple[dict[str, list[Any]], dict[str, Any], {}]:
             limit=self._limit,
             offset=self._offset,
             sort=self._sort,
-            total_hits_count = self._total_hits_count,
+            total_hits_count=self._total_hits_count,
         )
         self.reset()
         return self._table._execute_query(query)
diff --git a/python/infinity_embedded/local_infinity/table.py b/python/infinity_embedded/local_infinity/table.py
index a5c85e354..7b0137de3 100644
--- a/python/infinity_embedded/local_infinity/table.py
+++ b/python/infinity_embedded/local_infinity/table.py
@@ -1,4 +1,4 @@
-# Copyright(C) 2023 InfiniFlow, Inc. All rights reserved.
+# Copyright(C) 2024 InfiniFlow, Inc. All rights reserved.
 #
 # Licensed under the Apache License, Version 2.0 (the "License");
 # you may not use this file except in compliance with the License.
@@ -11,6 +11,7 @@
 # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 # See the License for the specific language governing permissions and
 # limitations under the License.
+
 import functools
 import inspect
 from typing import Optional, Union, List, Any
@@ -59,7 +60,7 @@ def wrapper(*args, **kwargs):
 
     @name_validity_check("index_name", "Index")
     def create_index(self, index_name: str, index_info: IndexInfo,
-                     conflict_type: ConflictType = ConflictType.Error, index_comment : str = ""):
+                     conflict_type: ConflictType = ConflictType.Error, index_comment: str = ""):
         index_name = index_name.strip()
 
         create_index_conflict: LocalConflictType
@@ -166,8 +167,8 @@ def insert(self, data: Union[INSERT_DATA, list[INSERT_DATA]]):
                 constant_expression = get_local_constant_expr_from_python_value(value)
                 parse_exprs.append(constant_expression)
             insert_row = WrapInsertRowExpr()
-            insert_row.columns=column_names
-            insert_row.values=parse_exprs
+            insert_row.columns = column_names
+            insert_row.values = parse_exprs
             fields.append(insert_row)
 
         res = self._conn.insert(db_name=db_name, table_name=table_name, fields=fields)
@@ -384,7 +385,8 @@ def sort(self, order_by_expr_list: Optional[List[list[str, SortType]]]):
                 raise InfinityException(ErrorCode.INVALID_PARAMETER_VALUE,
                                         "order_by_expr_list must be a list of [column_name, sort_type]")
             if order_by_expr[1] not in [SortType.Asc, SortType.Desc]:
-                raise InfinityException(ErrorCode.INVALID_PARAMETER_VALUE, "sort_type must be SortType.Asc or SortType.Desc")
+                raise InfinityException(ErrorCode.INVALID_PARAMETER_VALUE,
+                                        "sort_type must be SortType.Asc or SortType.Desc")
         self.query_builder.sort(order_by_expr_list)
         return self
 
diff --git a/python/infinity_embedded/local_infinity/types.py b/python/infinity_embedded/local_infinity/types.py
index 8c92cf9e8..80f3a8f22 100644
--- a/python/infinity_embedded/local_infinity/types.py
+++ b/python/infinity_embedded/local_infinity/types.py
@@ -1,4 +1,4 @@
-# Copyright(C) 2023 InfiniFlow, Inc. All rights reserved.
+# Copyright(C) 2024 InfiniFlow, Inc. All rights reserved.
 #
 # Licensed under the Apache License, Version 2.0 (the "License");
 # you may not use this file except in compliance with the License.
@@ -15,11 +15,10 @@
 import struct
 import json
 from collections import defaultdict
-from typing import Any, Tuple, Dict, List
-import polars as pl
+from typing import Any
 import numpy as np
 from numpy import dtype
-from infinity_embedded.common import VEC, SparseVector, InfinityException, DEFAULT_MATCH_VECTOR_TOPN
+from infinity_embedded.common import VEC, SparseVector, InfinityException
 from infinity_embedded.embedded_infinity_ext import *
 from infinity_embedded.errors import ErrorCode
 from datetime import date, time, datetime, timedelta
diff --git a/python/infinity_embedded/local_infinity/utils.py b/python/infinity_embedded/local_infinity/utils.py
index af48336f6..c5a55bf4b 100644
--- a/python/infinity_embedded/local_infinity/utils.py
+++ b/python/infinity_embedded/local_infinity/utils.py
@@ -1,4 +1,4 @@
-# Copyright(C) 2023 InfiniFlow, Inc. All rights reserved.
+# Copyright(C) 2024 InfiniFlow, Inc. All rights reserved.
 #
 # Licensed under the Apache License, Version 2.0 (the "License");
 # you may not use this file except in compliance with the License.
@@ -25,11 +25,10 @@
 from infinity_embedded.common import InfinityException, SparseVector
 from infinity_embedded.local_infinity.types import build_result, logic_type_to_dtype
 from infinity_embedded.utils import binary_exp_to_paser_exp
-from infinity_embedded.embedded_infinity_ext import WrapInExpr, WrapParsedExpr, WrapOrderByExpr, WrapFunctionExpr, \
+from infinity_embedded.embedded_infinity_ext import WrapInExpr, WrapParsedExpr, WrapFunctionExpr, \
     WrapColumnExpr, WrapConstantExpr, ParsedExprType, LiteralType
 from infinity_embedded.embedded_infinity_ext import WrapEmbeddingType, WrapColumnDef, WrapDataType, LogicalType, \
     EmbeddingDataType, WrapSparseType, ConstraintType
-from datetime import date, time, datetime, timedelta
 
 
 def traverse_conditions(cons, fn=None):
diff --git a/python/infinity_embedded/table.py b/python/infinity_embedded/table.py
index 164d9b72d..2f7b78bc5 100644
--- a/python/infinity_embedded/table.py
+++ b/python/infinity_embedded/table.py
@@ -1,4 +1,4 @@
-# Copyright(C) 2023 InfiniFlow, Inc. All rights reserved.
+# Copyright(C) 2024 InfiniFlow, Inc. All rights reserved.
 #
 # Licensed under the Apache License, Version 2.0 (the "License");
 # you may not use this file except in compliance with the License.
@@ -12,15 +12,13 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 
-from abc import ABC, abstractmethod
 from enum import Enum
-from typing import Optional, Union, Any
 
-from infinity_embedded.index import IndexInfo
 from infinity_embedded.common import InfinityException, INSERT_DATA
 from infinity_embedded.embedded_infinity_ext import ExplainType as LocalExplainType
 from infinity_embedded.errors import ErrorCode
 
+
 class ExplainType(Enum):
     Analyze = 1
     Ast = 2
@@ -30,7 +28,6 @@ class ExplainType(Enum):
     Pipeline = 6
     Fragment = 7
 
-
     def to_local_ttype(self):
         if self is ExplainType.Ast:
             return LocalExplainType.kAst
diff --git a/python/infinity_embedded/utils.py b/python/infinity_embedded/utils.py
index 8f3c2d7bb..6857fded8 100644
--- a/python/infinity_embedded/utils.py
+++ b/python/infinity_embedded/utils.py
@@ -1,4 +1,4 @@
-# Copyright(C) 2023 InfiniFlow, Inc. All rights reserved.
+# Copyright(C) 2024 InfiniFlow, Inc. All rights reserved.
 #
 # Licensed under the Apache License, Version 2.0 (the "License");
 # you may not use this file except in compliance with the License.
@@ -47,5 +47,6 @@ def binary_exp_to_paser_exp(binary_expr_key) -> str:
     else:
         raise InfinityException(ErrorCode.INVALID_EXPRESSION, f"unknown binary expression: {binary_expr_key}")
 
+
 def deprecated_api(message):
     warnings.warn(message, DeprecationWarning, stacklevel=2)
diff --git a/python/infinity_sdk/infinity/__init__.py b/python/infinity_sdk/infinity/__init__.py
index 95bfba798..4dff794bc 100644
--- a/python/infinity_sdk/infinity/__init__.py
+++ b/python/infinity_sdk/infinity/__init__.py
@@ -26,7 +26,8 @@
 from infinity.remote_thrift.infinity import RemoteThriftInfinityConnection
 from infinity.errors import ErrorCode
 
-def connect(uri = LOCAL_HOST, logger: logging.Logger = None) -> InfinityConnection:
+
+def connect(uri=LOCAL_HOST, logger: logging.Logger = None) -> InfinityConnection:
     if isinstance(uri, NetworkAddress):
         return RemoteThriftInfinityConnection(uri, logger)
     else:
diff --git a/python/infinity_sdk/infinity/common.py b/python/infinity_sdk/infinity/common.py
index 2300818b9..09b4fdeaa 100644
--- a/python/infinity_sdk/infinity/common.py
+++ b/python/infinity_sdk/infinity/common.py
@@ -74,10 +74,12 @@ class ConflictType(object):
     Error = 1
     Replace = 2
 
+
 class SortType(object):
     Asc = 0
     Desc = 1
 
+
 class InfinityException(Exception):
     def __init__(self, error_code=0, error_message=None):
         self.error_code = error_code
diff --git a/python/infinity_sdk/infinity/connection_pool.py b/python/infinity_sdk/infinity/connection_pool.py
index 6f4893e07..e2f74490a 100644
--- a/python/infinity_sdk/infinity/connection_pool.py
+++ b/python/infinity_sdk/infinity/connection_pool.py
@@ -1,3 +1,17 @@
+# Copyright(C) 2024 InfiniFlow, Inc. All rights reserved.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#      https://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
 from threading import Lock
 import infinity
 from infinity.common import NetworkAddress
@@ -5,7 +19,7 @@
 
 
 class ConnectionPool(object):
-    def __init__(self, uri = NetworkAddress("127.0.0.1", 23817), max_size=16):
+    def __init__(self, uri=NetworkAddress("127.0.0.1", 23817), max_size=16):
         self.uri_ = uri
         self.max_size_ = max_size
         self.free_pool_ = []
@@ -13,7 +27,6 @@ def __init__(self, uri = NetworkAddress("127.0.0.1", 23817), max_size=16):
         for i in range(max_size):
             self._create_conn()
 
-
     def _del__(self):
         self.destroy()
 
@@ -21,7 +34,6 @@ def _create_conn(self):
         infinity_coon = infinity.connect(self.uri_)
         self.free_pool_.append(infinity_coon)
 
-
     def get_conn(self):
         with self.lock_:
             if (len(self.free_pool_) == 0):
@@ -30,20 +42,18 @@ def get_conn(self):
             logging.debug("get_conn")
             return conn
 
-
     def release_conn(self, conn):
         """
         Note: User is allowed to release a connection not created by ConnectionPool, or not releasing(due to exception or some other reasons) a connection created by ConnectionPool.
         """
         with self.lock_:
-            if(self.free_pool_.count(conn)):
+            if (self.free_pool_.count(conn)):
                 raise Exception("the connection has been released")
             if (len(self.free_pool_) < self.max_size_):
                 self.free_pool_.append(conn)
             logging.debug("release_conn")
 
-
     def destroy(self):
         for conn in iter(self.free_pool_):
             conn.disconnect()
-        self.free_pool_.clear()
\ No newline at end of file
+        self.free_pool_.clear()
diff --git a/python/infinity_sdk/infinity/db.py b/python/infinity_sdk/infinity/db.py
index 1e1693c89..635ee7458 100644
--- a/python/infinity_sdk/infinity/db.py
+++ b/python/infinity_sdk/infinity/db.py
@@ -14,6 +14,7 @@
 
 from abc import ABC, abstractmethod
 
+
 class Database(ABC):
 
     @abstractmethod
diff --git a/python/infinity_sdk/infinity/errors.py b/python/infinity_sdk/infinity/errors.py
index 1e482d3eb..df959070f 100644
--- a/python/infinity_sdk/infinity/errors.py
+++ b/python/infinity_sdk/infinity/errors.py
@@ -117,6 +117,15 @@ class ErrorCode(IntEnum):
     INVALID_EXPLAIN_TYPE = 3081,
     CHUNK_NOT_EXIST = 3082,
     NAME_MISMATCHED = 3083,
+    TRANSACTION_NOT_FOUND = 3084,
+    INVALID_DATABASE_INDEX = 3085,
+    INVALID_TABLE_INDEX = 3086,
+    FUNCTION_IS_DISABLE = 3087,
+    NOT_FOUND = 3088,
+    ERROR_INIT = 3089,
+    FILE_IS_OPEN = 3090,
+    UNKNOWN = 3091,
+    INVALID_QUERY_OPTION = 3092,
 
     TXN_ROLLBACK = 4001,
     TXN_CONFLICT = 4002,
@@ -126,6 +135,7 @@ class ErrorCode(IntEnum):
     TOO_MANY_CONNECTIONS = 5003,
     CONFIGURATION_LIMIT_EXCEED = 5004,
     QUERY_IS_TOO_COMPLEX = 5005,
+    FAIL_TO_GET_SYS_INFO = 5006,
 
     QUERY_CANCELLED = 6001,
     QUERY_NOT_SUPPORTED = 6002,
@@ -147,7 +157,26 @@ class ErrorCode(IntEnum):
     MUNMAP_FILE_ERROR = 7014,
     INVALID_FILE_FLAG = 7015,
     INVALID_SERVER_ADDRESS = 7016,
+    FAIL_TO_FUN_PYTHON = 7017,
+    CANT_CONNECT_SERVER = 7018,
+    NOT_EXIST_NODE = 7019,
+    DUPLICATE_NODE = 7020,
+    CANT_CONNECT_LEADER = 7021,
+    MINIO_INVALID_ACCESS_KEY = 7022,
+    MINIO_BUCKET_NOT_EXISTS = 7023,
+    INVALID_STORAGE_TYPE = 7024,
+    NOT_REGISTERED = 7025,
+    CANT_SWITCH_ROLE = 7026,
+    TOO_MANY_FOLLOWER = 7027,
+    TOO_MANY_LEARNER = 7028,
 
     INVALID_ENTRY = 8001,
-    NOT_FOUND_ENTRY = 8002,
-    EMPTY_ENTRY_LIST = 8003,
+    DUPLICATE_ENTRY = 8002
+    NOT_FOUND_ENTRY = 8003,
+    EMPTY_ENTRY_LIST = 8004,
+    NO_WAL_ENTRY_FOUND = 8005,
+    WRONG_CHECKPOINT_TYPE = 8006,
+    INVALID_NODE_ROLE = 8007,
+    INVALID_NODE_STATUS = 8008,
+    NODE_INFO_UPDATED = 8009,
+    NODE_NAME_MISMATCH = 8010
\ No newline at end of file
diff --git a/python/infinity_sdk/infinity/remote_thrift/db.py b/python/infinity_sdk/infinity/remote_thrift/db.py
index 60e2b8553..e5da17858 100644
--- a/python/infinity_sdk/infinity/remote_thrift/db.py
+++ b/python/infinity_sdk/infinity/remote_thrift/db.py
@@ -28,6 +28,7 @@
 from infinity.common import ConflictType
 from infinity.common import InfinityException
 
+
 class RemoteDatabase(Database, ABC):
     def __init__(self, conn, name: str):
         self._conn = conn
diff --git a/python/infinity_sdk/infinity/remote_thrift/types.py b/python/infinity_sdk/infinity/remote_thrift/types.py
index 95dcdafa3..08f7b866a 100644
--- a/python/infinity_sdk/infinity/remote_thrift/types.py
+++ b/python/infinity_sdk/infinity/remote_thrift/types.py
@@ -18,7 +18,7 @@
 from infinity.common import VEC, SparseVector, InfinityException
 from infinity.remote_thrift.infinity_thrift_rpc.ttypes import *
 from collections import defaultdict
-from typing import Any, Tuple, Dict, List, Optional
+from typing import Any, Optional
 from datetime import date, time, datetime, timedelta
 
 import polars as pl
@@ -174,14 +174,16 @@ def column_vector_to_list(column_type: ttypes.ColumnType, column_data_type: ttyp
         case _:
             raise NotImplementedError(f"Unsupported type {column_type}")
 
+
 def parse_date_bytes(column_vector):
     parsed_list = list(struct.unpack('<{}i'.format(len(column_vector) // 4), column_vector))
     date_list = []
     epoch = date(1970, 1, 1)
-    for value in parsed_list: 
-        date_list.append((epoch + timedelta(days = value)).strftime('%Y-%m-%d'))
+    for value in parsed_list:
+        date_list.append((epoch + timedelta(days=value)).strftime('%Y-%m-%d'))
     return date_list
 
+
 def parse_time_bytes(column_vector):
     parsed_list = list(struct.unpack('<{}i'.format(len(column_vector) // 4), column_vector))
     time_list = []
@@ -192,15 +194,18 @@ def parse_time_bytes(column_vector):
         time_list.append(time(hour=hours, minute=minutes, second=seconds).strftime('%H:%M:%S'))
     return time_list
 
+
 def parse_datetime_bytes(column_vector):
     parsed_list = list(struct.unpack('<{}i'.format(len(column_vector) // 4), column_vector))
     datetime_list = []
     epoch = datetime(1970, 1, 1)
     for i in range(0, len(parsed_list), 2):
         if i + 1 < len(parsed_list):
-            datetime_list.append((epoch + timedelta(days = parsed_list[i], seconds = parsed_list[i + 1])).strftime('%Y-%m-%d %H:%M:%S'));
+            datetime_list.append(
+                (epoch + timedelta(days=parsed_list[i], seconds=parsed_list[i + 1])).strftime('%Y-%m-%d %H:%M:%S'));
     return datetime_list
 
+
 def parse_interval_bytes(column_vector):
     parsed_list = list(struct.unpack('<{}i'.format(len(column_vector) // 4), column_vector))
     interval_list = []
@@ -208,6 +213,7 @@ def parse_interval_bytes(column_vector):
         interval_list.append(str(timedelta(seconds=value).total_seconds()) + 's')
     return interval_list
 
+
 def parse_bytes(bytes_data):
     results = []
     offset = 0
@@ -299,6 +305,7 @@ def tensor_to_list(column_data_type: ttypes.DataType, binary_data) -> list[list[
         raise NotImplementedError(
             f"Unsupported type {column_data_type.physical_type.embedding_type.element_type}")
 
+
 def parse_sparse_bytes(column_data_type: ttypes.DataType, column_vector):
     dimension = column_data_type.physical_type.sparse_type.dimension
     element_type = column_data_type.physical_type.sparse_type.element_type
@@ -491,6 +498,7 @@ def make_match_sparse_expr(vector_column_name: str, sparse_data: SparseVector |
         for k, v in opt_params.items():
             match_sparse_options.append(InitParameter(param_name=k, param_value=v))
 
-    match_sparse_expr = MatchSparseExpr(column_expr=column_expr, query_sparse_expr=query_sparse_expr, metric_type=metric_type,
+    match_sparse_expr = MatchSparseExpr(column_expr=column_expr, query_sparse_expr=query_sparse_expr,
+                                        metric_type=metric_type,
                                         topn=topn, opt_params=match_sparse_options, filter_expr=filter_expr)
     return match_sparse_expr
diff --git a/python/infinity_sdk/infinity/remote_thrift/utils.py b/python/infinity_sdk/infinity/remote_thrift/utils.py
index 4dfa23080..5e7bed11f 100644
--- a/python/infinity_sdk/infinity/remote_thrift/utils.py
+++ b/python/infinity_sdk/infinity/remote_thrift/utils.py
@@ -26,7 +26,6 @@
 from infinity.utils import binary_exp_to_paser_exp
 from infinity.common import InfinityException, SparseVector
 from infinity.errors import ErrorCode
-from datetime import date, time, datetime, timedelta
 
 
 def traverse_conditions(cons, fn=None) -> ttypes.ParsedExpr:
diff --git a/python/infinity_sdk/infinity/table.py b/python/infinity_sdk/infinity/table.py
index 10393991c..a2205ad62 100644
--- a/python/infinity_sdk/infinity/table.py
+++ b/python/infinity_sdk/infinity/table.py
@@ -21,6 +21,7 @@
 from infinity.common import InfinityException, INSERT_DATA
 from infinity.errors import ErrorCode
 
+
 class ExplainType(Enum):
     Analyze = 1
     Ast = 2
@@ -46,4 +47,4 @@ def to_ttype(self):
         elif self is ExplainType.Fragment:
             return ttypes.ExplainType.Fragment
         else:
-            raise InfinityException(ErrorCode.INVALID_EXPLAIN_TYPE, "Unknown explain type")
\ No newline at end of file
+            raise InfinityException(ErrorCode.INVALID_EXPLAIN_TYPE, "Unknown explain type")
diff --git a/python/infinity_sdk/infinity/utils.py b/python/infinity_sdk/infinity/utils.py
index 2514dfe44..64d7b8210 100644
--- a/python/infinity_sdk/infinity/utils.py
+++ b/python/infinity_sdk/infinity/utils.py
@@ -47,5 +47,6 @@ def binary_exp_to_paser_exp(binary_expr_key) -> str:
     else:
         raise InfinityException(ErrorCode.INVALID_EXPRESSION, f"unknown binary expression: {binary_expr_key}")
 
+
 def deprecated_api(message):
     warnings.warn(message, DeprecationWarning, stacklevel=2)
diff --git a/python/test_cluster/test_basic.py b/python/test_cluster/test_basic.py
index 90898397a..3955d9aba 100644
--- a/python/test_cluster/test_basic.py
+++ b/python/test_cluster/test_basic.py
@@ -42,29 +42,29 @@ def test_0(cluster: InfinityCluster):
         cluster.remove_node("node1")
 
 
-def test_mock(mock_cluster: MockInfinityCluster):
-    cluster = mock_cluster
-    with cluster:
-        cluster.add_node("node1", "conf/leader.toml")
-        cluster.add_node("node2", "conf/follower.toml")
-
-        cluster.set_leader("node1")
-        cluster.set_follower("node2")
-
-        time.sleep(1)
-
-        cluster.disconnect("node2")
-        time.sleep(0.1)
-        cluster.reconnect("node2")
-
-        cluster.block_peer_net("node2")
-        time.sleep(0.1)
-        cluster.restore_peer_net("node2")
-
-        time.sleep(1)
-
-        cluster.remove_node("node2")
-        cluster.remove_node("node1")
+# def test_mock(mock_cluster: MockInfinityCluster):
+#     cluster = mock_cluster
+#     with cluster:
+#         cluster.add_node("node1", "conf/leader.toml")
+#         cluster.add_node("node2", "conf/follower.toml")
+#
+#         cluster.set_leader("node1")
+#         cluster.set_follower("node2")
+#
+#         time.sleep(1)
+#
+#         cluster.disconnect("node2")
+#         time.sleep(0.1)
+#         cluster.reconnect("node2")
+#
+#         cluster.block_peer_net("node2")
+#         time.sleep(0.1)
+#         cluster.restore_peer_net("node2")
+#
+#         time.sleep(1)
+#
+#         cluster.remove_node("node2")
+#         cluster.remove_node("node1")
 
 
 @pytest.mark.docker
diff --git a/python/test_cluster/test_insert.py b/python/test_cluster/test_insert.py
index 42a811ffe..1ad755980 100644
--- a/python/test_cluster/test_insert.py
+++ b/python/test_cluster/test_insert.py
@@ -60,8 +60,8 @@ def __test_inner_1(self, cluster: InfinityCluster):
     def test_insert_11(self, cluster: InfinityCluster):
         self.__test_inner_1(cluster)
 
-    def test_insert_12(self, mock_cluster: MockInfinityCluster):
-        self.__test_inner_1(mock_cluster)
+    # def test_insert_12(self, mock_cluster: MockInfinityCluster):
+    #     self.__test_inner_1(mock_cluster)
 
     @pytest.mark.docker
     def test_insert_13(self, docker_cluster: DockerInfinityCluster):