pyros_future_logger.py
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#!/usr/bin/env python3
"""LOGGER
"""
# Standard library imports
import logging
# https://docs.python.org/3/library/logging.handlers.html#module-logging.handlers
from logging.handlers import SMTPHandler, TimedRotatingFileHandler
import sys
# Third party imports
# None
# Local application imports
# None
logger = None
def get_console_handler():
# Console should print ALL messages (starting from lower level DEBUG)
c_handler = logging.StreamHandler(sys.stdout)
c_handler.setLevel(logging.DEBUG)
c_format = logging.Formatter('%(name)s - %(levelname)s - %(message)s')
c_handler.setFormatter(c_format)
return c_handler
def get_file_handler():
# Log File should contain ONLY messages starting from level WARNING (ERROR ?)
#f_handler = logging.FileHandler('file.log')
f_handler = TimedRotatingFileHandler("file.log", when='midnight')
f_handler.setLevel(logging.WARNING)
# Create formatter and add it to handler
#f_format = logging.Formatter('%(asctime)s - %(name)s - %(levelname)s - %(message)s')
f_format = logging.Formatter('%(asctime)s - %(levelname)s - %(filename)s : %(lineno)s - %(message)s')
f_handler.setFormatter(f_format)
return f_handler
def get_db_handler():
# DB should contain ONLY messages starting from level ERROR
# TODO:
pass
def get_email_handler():
# Email should be sent ONLY for messages starting from level CRITICAL
# http://sametmax.com/envoi-dun-email-par-logging-en-cas-de-plantage-dun-script-python-ou-comment-faire-bouffer-uxe9-a-smtphandler/
# TODO: a ameliorer avec article ci-dessus pour UNICODE
m_handler = SMTPHandler(
# Host et port
('SMTP.GMAIL.COM', 587),
# From
"MOI@GMAIL.COM",
# To (liste)
["QUELQU.UN@QUELQUE.PART"],
# Sujet du message
"Erreur critique dans module MMM",
# pour l'authentification
credentials = ("MONEMAIL@GMAIL.COM", "MONSUPERPASSWORD"),
secure = ()
)
m_handler.setLevel(logging.WARNING)
m_format = logging.Formatter('%(asctime)s - %(name)s - %(levelname)s - %(message)s')
m_handler.setFormatter(m_format)
return m_handler
def get_logger(logger_name):
global logger
# Basic configuration
'''
#logging.basicConfig(level=logging.DEBUG)
logging.basicConfig(level=logging.DEBUG, filename='client.log', filemode='a', format='%(asctime)s - %(name)s - %(levelname)s - %(message)s')
logging.debug("Client instanciated")
'''
# Advanced configuration
# https://docs.python.org/3/library/logging.html#logging.getLogger
#logger = logging.getLogger(__name__)
logger = logging.getLogger(logger_name)
# If not set, default level is NOTSET (all messages are logged)
# The defined levels, in order of increasing severity : DEBUG, INFO, WARNING, ERROR, CRITICAL
logger.setLevel(logging.DEBUG) # better to have too much log than not enough
# Create and add handlers to the logger
logger.addHandler(get_console_handler())
logger.addHandler(get_file_handler())
# TODO:
##logger.addHandler(db_handler)
##logger.addHandler(m_handler)
# with this pattern, it's rarely necessary to propagate the error up to parent
##logger.propagate = False
return logger
# Shortcuts for logger:
#def log_d(msg:str): logger.debug(msg)
def log_d(msg:str, *args, **kwargs): logger.debug(msg, *args, **kwargs)
def log_i(msg:str, *args, **kwargs): logger.info(msg, *args, **kwargs)
def log_w(msg:str, *args, **kwargs): logger.warning(msg, *args, **kwargs)
def log_e(msg:str, *args, **kwargs): logger.error(msg, *args, **kwargs)
def log_c(msg:str, *args, **kwargs): logger.critical(msg, *args, **kwargs)
if __name__ == "__main__":
my_logger = get_logger("my_module_name")
my_logger.debug("a debug message")