log file.

[Joaquin Alzola]

>thanks I will look at them.

As an example for your guide:

##log_handler###
import sys
import logging
import logging.handlers
from configfile_read import *

def LogHandler(logger):
        CONFIG_FILE = ('./conf/' + 'config.ini')
        config = configfile(CONFIG_FILE)

        FORMAT = '%(asctime)-15s %(name)s %(levelname)s-%(levelno)s %(message)s'
        LOG_LEVEL = config.get("logging","Logging_Level")
        LOG_FILE = config.get("logging","Logging_File")
        LOG_DIRECTORY = config.get("logging","Logging_Directory")
        LOG_BYTES = config.get("logging","Logging_bytes")
        LOG_COUNT = config.get("logging","Logging_count")

        LEVEL = logging.getLevelName(LOG_LEVEL)
        logger.setLevel(LEVEL)
        handler = logging.handlers.RotatingFileHandler(LOG_DIRECTORY + LOG_FILE,maxBytes=int(LOG_BYTES),backupCount=int(LOG_COUNT))
        handler.setFormatter(logging.Formatter(FORMAT))
        return handler


On each part of your code start a logger:
logger = logging.getLogger('__main__.' + __name__)

And in the main part:
from log_handler import *
#Logging Config Starts
logger = logging.getLogger(__name__)
logger.addHandler(LogHandler(logger))
#Logging Config Ends

####Config_parser where log parameters are taken####
import configparser
import os, sys
import logging
import logging.handlers
from log_handler import *

logger = logging.getLogger('__main__.' + __name__)

class configfile:

        def __init__(self,CONFIG_FILE):
                self.CONFIG_FILE = CONFIG_FILE
                if not os.path.isfile(self.CONFIG_FILE):
                        logger.critical('File NOT found: %s' % CONFIG_FILE + '. This file is needed for the system to work')
                        sys.exit()

        def get(self,general,parameter):
                config = configparser.ConfigParser()
                config.read(self.CONFIG_FILE)
                try:
                        result = config.get(general,parameter)
                except configparser.NoSectionError as e:
                        logger.critical('File %s is there but need information inside: %s'%(self.CONFIG_FILE,e))
                        sys.exit()
                logger.debug('Parameters pass to configparser-->' + general + ':' + parameter + ' with result-->' + result)
                return result


testbedocg:/usr/local/statistics_server/conf # more config.ini
[config]
Host=172.1.1.1
Port=12346

[logging]
#Possbile Values: CRITICAL ERROR WARNING INFO DEBUG NOTSET
Logging_Level=DEBUG
Logging_File=server_log.log
Logging_Directory=./logs/
Logging_bytes=2097152
Logging_count=5

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