我目前正试图右对齐Python记录器中的logging level字段,以便输出如下:
[2011-10-14 13:47:51] [DEBUG] --- starting... (smtphandlers.py:96)
[2011-10-14 13:47:51] [INFO] --- first things first... (smtphandlers.py:97)
[2011-10-14 13:47:51] [WARNING] --- about to end... (smtphandlers.py:98)
[2011-10-14 13:47:51] [DEBUG] --- ending (smtphandlers.py:99)
取而代之的是:
[2011-10-14 13:47:51] [ DEBUG] --- starting... (smtphandlers.py:96)
[2011-10-14 13:47:51] [ INFO] --- first things first... (smtphandlers.py:97)
[2011-10-14 13:47:51] [ WARNING] --- about to end... (smtphandlers.py:98)
[2011-10-14 13:47:51] [ DEBUG] --- ending (smtphandlers.py:99)
第一个块的格式行是:
logging.Formatter("[%(asctime)s] [%(levelname)s] --- %(message)s (%(filename)s:%(lineno)s)", "%Y-%m-%d %H:%M:%S")
如果我知道最大级别长度是8(例如:临界),那么我将右对齐到8个空格。 我在想怎么做到这一点。以下操作失败,因为“%(levelname)s”超过8个字符(直到稍后才进行替换)。如果我使用类似“{0:>;20}”.format“%(levelname)s”的内容,那么它就可以工作,但这比我需要或想要的填充更多。
logging.Formatter("[%(asctime)s] [" + "{0:>8}".format"%(levelname)s" + "] --- %(message)s (%(filename)s:%(lineno)s)", "%Y-%m-%d %H:%M:%S")
除了子类化格式化程序之外,还有谁能实现这一点?
像这样:
尝试使用此格式行:
python日志格式化程序使用标准pythonstring formatting rules
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