the python line 024 (logging module, re module)

1 import logging

　　As the name implies, the logging module is used to record the log.

Configuration log file # 
# define three log output format 
standard_format = '[% (asctime) s] [% (threadName) s:% (thread) d] [task_id:% (name) s] [% (filename) s: % (lineno) D] '\ 
                  ' [% (levelname) S] [% (Message) S] ' 
simple_format =' [% (levelname) S] [% (the asctime) S] [% (filename) S:% ( lineno) D]% (Message) S ' 
id_simple_format =' [% (levelname) S] [% (the asctime) S]% (Message) S ' 

directory path # log file 
BASE_PATH = os.path.dirname (os.path .dirname (__ file__)) 
logfile_dir = os.path.join (BASE_PATH, 'log') 
# log file name 
logfile_name = 'atm.log' 
# if defined log directory does not exist create one 
if not os.path.isdir ( logfile_dir): 
    os.mkdir (logfile_dir) 
full path to the # log file 
logfile_path = os.path.join (logfile_dir,The logfile_name) 

# configuration log dictionary 
LOGGING_DIC = {
    'Version':. 1, 
    'disable_existing_loggers': False, 
    'formatters': { 
        'Standard': { 
            'the format': standard_format 
        }, 
        'Simple': { 
            'the format': simple_format 
        }, 
    }, 
    'Filters': {}, 
    'handlers': { 
        # print log to the terminal 
        'Console': { 
            'Level': 'the DEBUG', 
            'class': 'logging.StreamHandler', printed to the screen # 
            'Formatter': 'Simple' 
        }, 
        # print to log file 
        'default': { 
            'Level': 'DEBUG ', 
            ' class': 'logging.handlers.RotatingFileHandler', saved to a file #
            'Formatter': 'Standard', 
            'filename': logfile_path, # log file 
            'maxBytes': 1024 * 1024 * 5, # log size 5M 
            'BACKUPCOUNT':. 5, 
            'encoding': 'UTF-. 8', # log file coding, longer have to worry about distortion Chinese log 
        }, 
    }, 
    'Loggers': { 
        # logging.getLogger (__ name__) get logger configuration 
        '': { 
            'handlers': [ 'default', 'Console'], # here the handler are defined above plus two, i.e., both the data written to log file to the screen printing and 
            'level': 'the DEBUG', 
            'Propagate': True, # up (the higher level Logger) transmission 
        }, 
    } 
}

　　Use as follows:

　　1) into the configuration module logs

　　import logging.config

　　2) Load Log dictionary format

　　logging.config.dictConfig(LOGGING_DICT)

　　3) using the method and info methods getLogger

　　logging.getLogger(name).info(message)

2 import re

　　Regular use of some symbol combinations that have special meaning or the method described character string together (referred to as regular expressions).

the python line 024 (logging module, re module)

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