Method Name:
log
Method Signature:
critical(logLevel, logMessage, *args, **kwargs)
Method Overview:
- log() method records a message of specified log level to the logger object.
- Logger object based on the handler attached to them outputs the log message in a specified destination.
- Unless any specific handler is configured, the handler attached by default is stderr, which is generally the console.
- The optional arguments to log() method *args, **kwargs enrich the log message with process name, line number of the module, information about the exception and stack and so on.
- These optional arguments are explained in detail as part of the debug() method of the logger class.
Example:
|
import logging
# Get a logger with the name of the current module loggerObject = logging.getLogger(__name__) logFormat = '%(asctime)s %(filename)s %(processName)s---%(message)s' logging.basicConfig(level=logging.DEBUG, format=logFormat)
# Try all the log levels loggerObject.log(logging.DEBUG, "This is a DEBUG message") loggerObject.log(logging.INFO, "This is a INFO message") loggerObject.log(logging.WARNING, "This is a WARNING message") loggerObject.log(logging.ERROR, "This is a ERROR message") loggerObject.log(logging.CRITICAL, "This is a CRITICAL message") |
Output:
|
2017-03-25 15:13:17,261 logr6.py MainProcess---This is a DEBUG message 2017-03-25 15:13:17,261 logr6.py MainProcess---This is a INFO message 2017-03-25 15:13:17,261 logr6.py MainProcess---This is a WARNING message 2017-03-25 15:13:17,261 logr6.py MainProcess---This is a ERROR message 2017-03-25 15:13:17,261 logr6.py MainProcess---This is a CRITICAL message |