refactor (#1124)

### What problem does this PR solve?


### Type of change

- [x] Refactoring

api/utils/api_utils.py

@@ -248,11 +248,12 @@ def construct_result(code=RetCode.DATA_ERROR, message='data is missing'):
 
 
 def construct_json_result(code=RetCode.SUCCESS, message='success', data=None):
-    if data == None:
+    if data is None:
         return jsonify({"code": code, "message": message})
     else:
         return jsonify({"code": code, "message": message, "data": data})
 
+
 def construct_error_response(e):
     stat_logger.exception(e)
     try:

api/utils/log_utils.py

@@ -154,11 +154,6 @@ class LoggerFactory(object):
                                                delay=True)
         if level:
             handler.level = level
-        else:
-            handler.level = LoggerFactory.LEVEL
-
-        formatter = logging.Formatter(LoggerFactory.LOG_FORMAT)
-        handler.setFormatter(formatter)
 
         return handler
 

api/utils/web_utils.py

@@ -78,5 +78,3 @@ def __get_pdf_from_html(
 
 def is_valid_url(url: str) -> bool:
     return bool(re.match(r"(https?|ftp|file)://[-A-Za-z0-9+&@#/%?=~_|!:,.;]+[-A-Za-z0-9+&@#/%=~_|]", url))
-
-