如何自定义Python日志的时间格式？
如何自定义Python日志的时间格式？
提问于 2010-07-11 01:56:39
我刚接触Python的日志记录包，并计划在我的项目中使用它。我想根据自己的喜好定制时间格式。以下是我从教程中复制的一小段代码：
import logging
# create logger
logger = logging.getLogger("logging_tryout2")
logger.setLevel(logging.DEBUG)
# create console handler and set level to debug
ch = logging.StreamHandler()
ch.setLevel(logging.DEBUG)
# create formatter
formatter = logging.Formatter("%(asctime)s;%(levelname)s;%(message)s")
# add formatter to ch
ch.setFormatter(formatter)
# add ch to logger
logger.addHandler(ch)
# "application" code
logger.debug("debug message")
logger.info("info message")
logger.warn("warn message")
logger.error("error message")
logger.critical("critical message")下面是输出：
2010-07-10 10:46:28,811;DEBUG;debug message
2010-07-10 10:46:28,812;INFO;info message
2010-07-10 10:46:28,812;WARNING;warn message
2010-07-10 10:46:28,812;ERROR;error message
2010-07-10 10:46:28,813;CRITICAL;critical message我想将时间格式缩短为：“2010-07-10 10:46:28”，去掉毫秒后缀。我看了看Formatter.formatTime，但是很困惑。我很感谢你帮助我实现我的目标。谢谢。
回答 4
Stack Overflow用户
发布于 2014-05-27 00:26:52
使用logging.basicConfig，下面的示例适用于我：
logging.basicConfig(
filename='HISTORYlistener.log',
level=logging.DEBUG,
format='%(asctime)s.%(msecs)03d %(levelname)s %(module)s - %(funcName)s: %(message)s',
datefmt='%Y-%m-%d %H:%M:%S',
)这允许您在一行中格式化和配置所有内容。生成的日志记录如下所示：
2014-05-26 12:22:52.376 CRITICAL historylistener - main: History log failed to startStack Overflow用户
发布于 2017-05-30 09:40:42
为了补充其他答案，这里是Python文档中的variable list。
Directive Meaning Notes
%a Locale’s abbreviated weekday name.
%A Locale’s full weekday name.
%b Locale’s abbreviated month name.
%B Locale’s full month name.
%c Locale’s appropriate date and time representation.
%d Day of the month as a decimal number [01,31].
%H Hour (24-hour clock) as a decimal number [00,23].
%I Hour (12-hour clock) as a decimal number [01,12].
%j Day of the year as a decimal number [001,366].
%m Month as a decimal number [01,12].
%M Minute as a decimal number [00,59].
%p Locale’s equivalent of either AM or PM. (1)
%S Second as a decimal number [00,61]. (2)
%U Week number of the year (Sunday as the first day of the week) as a decimal number [00,53]. All days in a new year preceding the first Sunday are considered to be in week 0. (3)
%w Weekday as a decimal number [0(Sunday),6].
%W Week number of the year (Monday as the first day of the week) as a decimal number [00,53]. All days in a new year preceding the first Monday are considered to be in week 0. (3)
%x Locale’s appropriate date representation.
%X Locale’s appropriate time representation.
%y Year without century as a decimal number [00,99].
%Y Year with century as a decimal number.
%z Time zone offset indicating a positive or negative time difference from UTC/GMT of the form +HHMM or -HHMM, where H represents decimal hour digits and M represents decimal minute digits [-23:59, +23:59].
%Z Time zone name (no characters if no time zone exists).
%% A literal '%' character. Stack Overflow用户
发布于 2011-05-25 23:34:57
如果将logging.config.fileConfig与配置文件一起使用，请使用类似以下内容：
[formatter_simpleFormatter]
format=%(asctime)s - %(name)s - %(levelname)s - %(message)s
datefmt=%Y-%m-%d %H:%M:%S页面原文内容由Stack Overflow提供。腾讯云小微IT领域专用引擎提供翻译支持
原文链接：
https://stackoverflow.com/questions/3220284
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