diff --git a/community/github/commit/commit.py b/community/github/commit/commit.py
index d9843e4..affd22f 100644
--- a/community/github/commit/commit.py
+++ b/community/github/commit/commit.py
@@ -293,7 +293,7 @@ def generate_commit_message_base_diff(user_input, diff, issue):
     if (
         not response["content"]
         and response.get("error", None)
-        and f'{response["error"]}'.find("This model's maximum context length is") > 0
+        and f"{response['error']}".find("This model's maximum context length is") > 0
     ):
         print(model_token_limit_error)
         sys.exit(0)
diff --git a/community/gitlab/commit/commit.py b/community/gitlab/commit/commit.py
index 8f0d57c..308caec 100644
--- a/community/gitlab/commit/commit.py
+++ b/community/gitlab/commit/commit.py
@@ -286,7 +286,7 @@ def generate_commit_message_base_diff(user_input, diff, issue):
     if (
         not response["content"]
         and response.get("error", None)
-        and f'{response["error"]}'.find("This model's maximum context length is") > 0
+        and f"{response['error']}".find("This model's maximum context length is") > 0
     ):
         print(model_token_limit_error)
         sys.exit(0)
diff --git a/community/test/api/config/command.py b/community/test/api/config/command.py
index c2761bb..5d35dc4 100644
--- a/community/test/api/config/command.py
+++ b/community/test/api/config/command.py
@@ -2,8 +2,6 @@ import json
 import os
 import sys
 
-sys.path.append(os.path.join(os.path.dirname(os.path.abspath(__file__)), ".."))
-
 from lib.chatmark import Form, TextEditor  # 导入 ChatMark 组件
 
 
diff --git a/community/test/api/upload/command.py b/community/test/api/upload/command.py
index b5aa69d..622a34d 100755
--- a/community/test/api/upload/command.py
+++ b/community/test/api/upload/command.py
@@ -8,7 +8,7 @@ import requests
 ROOT_DIR = os.path.dirname(os.path.dirname(os.path.dirname(os.path.abspath(__file__))))
 sys.path.append(ROOT_DIR)
 
-from api.utils import (  # noqa: E402
+from api.utils import (
     OPENAPI_URL,
     PROJECT_ID,
     SERVER_URL,
diff --git a/lib/chatmark/form.py b/lib/chatmark/form.py
index facbf62..48cedc4 100644
--- a/lib/chatmark/form.py
+++ b/lib/chatmark/form.py
@@ -22,9 +22,9 @@ class Form:
         components: components in the form, can be widgets (except Button) or strings
         title: title of the form
         """
-        assert (
-            any(isinstance(c, Button) for c in components) is False
-        ), "Button is not allowed in Form"
+        assert any(isinstance(c, Button) for c in components) is False, (
+            "Button is not allowed in Form"
+        )
 
         self._components = components
         self._title = title
diff --git a/merico/unit_tests/ut_workflow.py b/merico/unit_tests/ut_workflow.py
index 423ede1..b670413 100644
--- a/merico/unit_tests/ut_workflow.py
+++ b/merico/unit_tests/ut_workflow.py
@@ -189,8 +189,7 @@ class UnitTestsWorkflow:
         case_editor = TextEditor(
             text="",
             title=_i(
-                "You can add more test cases here\n"
-                "(Multiple cases can be separated by line breaks)"
+                "You can add more test cases here\n(Multiple cases can be separated by line breaks)"
             ),
         )
         ref_editor = TextEditor(
@@ -263,7 +262,7 @@ class UnitTestsWorkflow:
 
         lines.append(_i("\nTest cases:"))
         width = len(str(len(cases)))
-        lines.extend([f"{(i+1):>{width}}. {c}" for i, c in enumerate(cases)])
+        lines.extend([f"{(i + 1):>{width}}. {c}" for i, c in enumerate(cases)])
 
         if not valid_files:
             lines.append(
@@ -276,7 +275,7 @@ class UnitTestsWorkflow:
             lines.append(_i("\nWill use the following reference files to generate tests."))
             # lines.append(_i("\nValid reference files:"))
             width = len(str(len(valid_files)))
-            lines.extend([f"{(i+1):>{width}}. {f}" for i, f in enumerate(valid_files)])
+            lines.extend([f"{(i + 1):>{width}}. {f}" for i, f in enumerate(valid_files)])
 
         # if invalid_files:
         #     lines.append(_i("\nInvalid files:"))
@@ -294,7 +293,7 @@ class UnitTestsWorkflow:
             width = len(str(len(contexts)))
             lines.extend(
                 [
-                    f"{(i+1):>{width}}. {c.file_path}:{c.range.start.line+1}-{c.range.end.line+1}"
+                    f"{(i + 1):>{width}}. {c.file_path}:{c.range.start.line + 1}-{c.range.end.line + 1}"
                     for i, c in enumerate(contexts)
                 ]
             )