python中logging模組的使用，pythonlogging模組

python中logging模組的使用，pythonlogging模組

一、基本用法

　　只需要基本的配置，就可以使用了。

import loggingdef fun2():    logging.basicConfig(filename="fun2.log",format="%(asctime)s %(message)s",level=logging.DEBUG)    logging.debug("this is fun2 log")

 

二、進行詳細配置

　　首先添加一個fileHandler來配置記錄的檔案，Formatter來設定記錄的格式和時間的格式，getLogger是獲得一個指定名字記錄器，然後給這個logger添加handler，並設定記錄層級，然後可以用相應的層級進行記錄了。

import loggingdef fun1():        logname = "test.log"    filehandler = logging.FileHandler(filename=logname,encoding="utf-8")    fmter = logging.Formatter(fmt="%(asctime)s %(message)s",datefmt="%Y-%m-%d %H:%M:%S")    filehandler.setFormatter(fmter)    loger = logging.getLogger(__name__)    loger.addHandler(filehandler)    loger.setLevel(logging.FATAL)    loger.fatal("second log")

 

其中Formatter配置參數fmt有如下選擇性參數

　　%(name)s            Name of the logger (logging channel)    %(levelno)s         Numeric logging level for the message (DEBUG, INFO,                        WARNING, ERROR, CRITICAL)    %(levelname)s       Text logging level for the message ("DEBUG", "INFO",                        "WARNING", "ERROR", "CRITICAL")    %(pathname)s        Full pathname of the source file where the logging                        call was issued (if available)    %(filename)s        Filename portion of pathname    %(module)s          Module (name portion of filename)    %(lineno)d          Source line number where the logging call was issued                        (if available)    %(funcName)s        Function name    %(created)f         Time when the LogRecord was created (time.time()                        return value)    %(asctime)s         Textual time when the LogRecord was created    %(msecs)d           Millisecond portion of the creation time    %(relativeCreated)d Time in milliseconds when the LogRecord was created,                        relative to the time the logging module was loaded                        (typically at application startup time)    %(thread)d          Thread ID (if available)    %(threadName)s      Thread name (if available)    %(process)d         Process ID (if available)    %(message)s         The result of record.getMessage(), computed just as                        the record is emitted

 

以下皆