Python log format output and time format, python log time format

Python log format output and time format, python log time format

formatter = logging.Formatter("%(asctime)s %(levelname)s %(message)s","%Y%b%d-%H:%M:%S")

The above % Y and so on are time formats, so to understand the above, Let's 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 100, range 00 to 99)
• % D-day of the month (01 to 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 (00 to 23)
• % I-hour, using a 12-hour clock (01 to 12)
• % J-day of the year (001 to 366)
• % M-month (01 to 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 24 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 (01 to 53), where week 1 is the first week that has at least 4 days in the 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 00 to 99)
• % Y-year including the century
• % Z or % z-time zone or name or abbreviation
• %-A literal % character

In our example Year, month, day, hour, minute, secondTo display the date.
In addition, we need to understand the meaning of format characters such as % (asctime) s. % (asctime) s indicates the current time in the string format; % (levelname) s, for logger. debug, It is DEBUG, if it is logger. error, it is ERROR; % (message) s, if there is a logger. warning ("HAHA") is the string HAHA at the % (message) s position. The more detailed format is as follows:

% (Name) s	Logger name
% (Levelno) s	Log Level in digital form
% (Levelname) s	Log Level in text format
% (Pathname) s	The complete path name of the module that calls the log output function.
% (Filename) s	File Name of the module that calls the log output function
% (Module) s	The name of the module that calls the log output function.
% (FuncName) s	Name of the function that calls the log output function
% (Lineno) d	The code line of the statement that calls the log output function
% (Created) f	Current Time, represented by floating points of time in UNIX standard
% (RelativeCreated) d	Number of milliseconds since Logger was created when log information is output
% (Asctime) s	The current time in string format. The default format is "16:49:45, 896 ". The comma is followed by a millisecond
% (Thread) d	Thread ID. Not possible
% (ThreadName) s	Thread name. Not possible
% (Process) d	Process ID. Not possible
% (Message) s	User Output Message