Python log format output and time format

Formatter = logging. Formatter ("% (asctime) s% (levelname) s% (message) S", "%y%b%d-%h:%m:%s")

The above%y is a time format, so to understand what to indicate above, first look at the Python time format.

• %a-abbreviated Weekday Name
• %a-full Weekday Name
• %b-abbreviated Month Name
• %b-full Month Name
• %c-preferred Date and time representation
• %c-century Number (the year divided by, Range xx to 99)
• %d-day of the Month (31)
• %d-same as%m/%d/%y
• %e-day of the month (1 to 31)
• %g-like%g, but without the century
• %g-4-digit year corresponding to the ISO week number (see%V).
• %h-same as%b
• %h-hour, using a 24-hour clock (xx to 23)
• %i-hour, using a 12-hour clock (12)
• %j-day of the year (001 to 366)
• %m-month (12)
• %m-minute
• %n-newline character
• %p-either am or PM according to the given time value
• %r-time in a.m. and P.M. notation
• %r-time in hour notation
• %s-second
• %t-tab character
• %t-current time, equal to%h:%m:%s
• %u-weekday as a number (1 to 7), Monday=1. Warning:in Sun Solaris Sunday=1
• %u-week number of the current year, starting with the first Sunday as the first day of the first week
• %v-the ISO 8601 Week number of the current year, where Week 1 are the first week that have at least 4 days in t He current year, and with Monday as the first day of the week
• %w-week number of the current year, starting with the first Monday as the first day of the first week
• %w-day of the week as a decimal, sunday=0
• %x-preferred date representation without the time
• %x-preferred time representation without the date
• %y-year without a century (range xx to 99)
• %y-year including the century
• %Z or%z-time zone or name or abbreviation
• Percent-a literal% character

Our example is to display the date in the form of a month day-time: minute: seconds .
In addition to this, it is necessary to understand the meaning of the format characters such as% (Asctime) s, and% (asctime) s means the current time as a string in this position;% (LevelName) s, If it is logger.debug then it is debug, if it is logger.error then it is error;% (message) s, if there is logger.warning ("HAHA"), then in % (message) The s position is the string haha. More detailed format characters are as follows:

When the log information is output, the number of milliseconds since the logger was created

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% (name) s	Logger's name.
% (levelno) s	log level in digital form
% (levelname) s	The log level in text form
% (pathname) s	The full pathname of the module that called the log output function, may not have
% (filename) s	filename of the module that called the log output function
% (module) s	call the module name of the log output function
% (funcName) s	call the function name of the log output function
% (lineno) d	The code line where the statement that called the log output function is located
% (created) F	current time, a floating-point number representing time with UNIX standard
% (relativecreated) d
% (asctime) s	The current time in string form. The default format is "2003-07-08 16:49:45,896". After the comma is milliseconds
% (thread) d	thread ID. May not have
% (threadname) s	thread name. May not have
% (process) d	process ID. May not have
% (message) s	User-Output messages

Python log format output and time format