python logging dictionaries examples

testlog.py

import logging.config
import sys


def trylog(l):
    for e in range(0, 50, 10):
        l.log(e, 'level %s' % e)


if __name__ == '__main__':

    print(sys.argv[1])
    if sys.argv[1] == "1":
        print("::root")
        trylog(logging)
        print("::one")
        trylog(logging.getLogger("one"))
        print('end')

    if sys.argv[1] == "2":
        # print(":::: Use default logging config")
        print(":::: Configure both root and logger level")
        logging.config.dictConfig({'version': 1,
                               'root': {'level': logging.INFO},
                               'loggers': {'one': {'level': logging.WARNING}}})
        print("::root")
        trylog(logging)
        print("::one")
        trylog(logging.getLogger("one"))
        print('end')

    if sys.argv[1] == "3":
        print(":::: Configure root level, logger is NOTSET")
        logging.config.dictConfig({'version': 1,
                               'root': {'level': logging.INFO},
                               'loggers': {'one': {'level': logging.NOTSET}}})
        print("::root")
        trylog(logging)
        print("::one")
        trylog(logging.getLogger("one"))
        print('end')

    if sys.argv[1] == "4":
        print(":::: No root level, logger is NOTSET")
        logging.config.dictConfig({'version': 1,
                                   'loggers': {'one': {'level': logging.NOTSET}}})
        print("::root")
        trylog(logging)
        print("::one")
        trylog(logging.getLogger("one"))
        print('end')
    if sys.argv[1] == "5":
        print(":::: None root level, logger is NOTSET")
        logging.config.dictConfig({'version': 1,
                                   'root': {'level': None},
                                   'loggers': {'one': {'level': logging.NOTSET}}})
        print("::root")
        trylog(logging)
        print("::one")
        trylog(logging.getLogger("one"))
        print('end')

    if sys.argv[1] == "6":
        print(":::: NOTSET root level, logger is NOTSET")
        logging.config.dictConfig({'version': 1,
                                   'root': {'level': logging.NOTSET},
                                   'loggers': {'one': {'level': logging.NOTSET}}})
        print("::root")
        trylog(logging)
        print("::one")
        trylog(logging.getLogger("one"))
        print('end')
        
"""
demo: (python used is python3 but it shouldn't make 



% python testlog.py 1
1
::root
WARNING:root:level 30
ERROR:root:level 40
::one
WARNING:one:level 30
ERROR:one:level 40
end

% python testlog.py 2
2
:::: Configure both root and logger level
::root
INFO:root:level 20
WARNING:root:level 30
ERROR:root:level 40
::one
WARNING:one:level 30
ERROR:one:level 40
end

% python testlog.py 3
3
:::: Configure root level, logger is NOTSET
::root
INFO:root:level 20
WARNING:root:level 30
ERROR:root:level 40
::one
INFO:one:level 20
WARNING:one:level 30
ERROR:one:level 40
end

% python testlog.py 4
4
:::: No root level, logger is NOTSET
::root
WARNING:root:level 30
ERROR:root:level 40
::one
WARNING:one:level 30
ERROR:one:level 40
end


% python testlog.py 5
5
:::: None root level, logger is NOTSET
::root
WARNING:root:level 30
ERROR:root:level 40
::one
WARNING:one:level 30
ERROR:one:level 40
end

 % python testlog.py 6 
6
:::: NOTSET root level, logger is NOTSET
::root
DEBUG:root:level 10
INFO:root:level 20
WARNING:root:level 30
ERROR:root:level 40
::one
DEBUG:one:level 10
INFO:one:level 20
WARNING:one:level 30
ERROR:one:level 40
end


"""