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__author__ = 'clobo'
import logging
class CustomLogLevel(object):
def __init__(self, level, name, logger_name=None):
self.level = level
self.name = name
self.logger_name = logger_name
if logger_name is None:
self.logger = logging.getLogger()
else:
self.logger = logging.getLogger(logger_name)
def __call__(self, customlevel):
"""
Wrap the decorated function to take care of the setting up of the custom log level.
"""
# Add the new custom level to the list of known levels
logging.addLevelName(self.level, self.name)
def _wrapper(msg, *args, **kwargs):
# Check if the currently set level allows this log level to print.
if self.logger.isEnabledFor(level):
_msg, _args, _kwargs = customlevel(self.logger, msg, *args, **kwargs)
self.logger.log(level, _msg, *_args, **_kwargs)
# Create function bindings in the logger or if using the root logger, setup the bindings to allow
# calls to logging.mycustomlevel() much like logging.info(), logging.debug() etc.
setattr(self.logger, self.name.lower(), _wrapper)
if self.logger_name is None:
setattr(logging, self.name.lower(), _wrapper)
return customlevel
def new_log_level(level, name, logger_name=None):
"""
Quick way to create a custom log level that behaves like the default levels in the logging module.
:param level: level number
:param name: level name
:param logger_name: optional logger name
"""
@CustomLogLevel(level, name, logger_name)
def _default_template(logger, msg, *args, **kwargs):
return msg, args, kwargs
if __name__ == '__main__':
level = logging.INFO-5
name = 'MYLEVEL'
# logger_name = 'mylogger'
logger_name = None
@CustomLogLevel(level, name, logger_name=logger_name)
def myloglevel(logger, msg, *args, **kwargs):
return 'This is a custom level: %s' % msg, args, kwargs
# create_new_level(level, name, logger_name=logger_name)
logging.basicConfig()
if logger_name:
l = logging.getLogger(logger_name)
logger = l
else:
l = logging.getLogger()
logger = logging
l.setLevel(logging.INFO)
logger.info('this is a test')
logger.mylevel('this is a test')
l.setLevel(level)
logger.info('this is a test')
logger.mylevel('this is a test')
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