feat: logger module

demo.py

@@ -0,0 +1,10 @@
+#!/usr/bin/env python3
+# -*- coding: utf-8 -*-
+
+from logger import logger
+
+logger.debug('debug')
+logger.info('info')
+logger.warning('warning')
+logger.error('error')
+logger.critical('critical')

logger.py

@@ -0,0 +1,41 @@
+#!/usr/bin/env python3
+# -*- coding: utf-8 -*-
+
+import sys
+import logging
+import colorlog
+
+logColor = {  # log color
+    'DEBUG': 'white',
+    'INFO': 'green',
+    'WARNING': 'yellow',
+    'ERROR': 'red',
+    'CRITICAL': 'bold_red',
+}
+
+dateFormat = '%Y-%m-%d %H:%M:%S'
+timeFormat = '%(asctime)s.%(msecs)03d'
+logFormat = '[%(levelname)s] %(message)s (%(module)s.%(funcName)s:%(lineno)d)'
+
+# load fileHandler -> log file
+fileHandler = logging.FileHandler('runtime.log', encoding = 'utf-8')
+fileHandler.setFormatter(logging.Formatter(
+    '[' + timeFormat + '] ' + logFormat,
+    datefmt = dateFormat
+))
+fileHandler.setLevel(logging.DEBUG)  # debug level for log file
+
+# load stdHandler -> stderr
+stdHandler = colorlog.StreamHandler()
+stdHandler.setFormatter(colorlog.ColoredFormatter(
+    '%(light_black)s' + timeFormat + '%(log_color)s ' + logFormat,
+    datefmt = dateFormat,
+    log_colors = logColor,
+    stream = sys.stderr
+))
+stdHandler.setLevel(logging.INFO)  # info level for stderr
+
+logger = logging.getLogger()
+logger.addHandler(stdHandler)
+logger.addHandler(fileHandler)
+logger.setLevel(logging.DEBUG)  # set log level in handler