improve performance & debug

mylogger.py

@@ -5,18 +5,26 @@ DEBUG_LEVELV_NUM = 9
 logging.addLevelName(DEBUG_LEVELV_NUM, "DEBUGV")
 
 
-def debugv(self, message, *args, **kws):
-    self.log(DEBUG_LEVELV_NUM, message, *args, **kws)
+class CustomLogger(logging.Logger):
+    # pylint: disable=too-many-arguments
+    def __new_style_log(self, level, msg, args, exc_info=None, extra=None, stack_info=False, **kwargs):
+        if kwargs.pop('style', "%") == "{":  # optional
+            msg = msg.format(*args)
+            args = []
+        super()._log(level, msg, args, exc_info, extra, stack_info)
+
+    def debugv(self, msg, *args, **kwargs):
+        if self.isEnabledFor(DEBUG_LEVELV_NUM):
+            self.__new_style_log(DEBUG_LEVELV_NUM, msg, args, **kwargs)
 
 
-logging.Logger.debugv = debugv
+logging.setLoggerClass(CustomLogger)
 # pylint: disable=invalid-name
 logger = logging.getLogger("log")
 
 
 def my_logger(file='activity.log', handler_level=logging.INFO):
     global logger
-
     logger.setLevel(handler_level)
     formatter = logging.Formatter('%(asctime)s :: %(levelname)s :: %(message)s')
     file_handler = RotatingFileHandler(file, 'a', 1000000, 1, encoding='utf8')