loglevels.py: logging._levelNames { (0) NOTSET ; (10) DEBUG ; (20) INFO ; (30) WARN / WARNING ; (40) ERROR ; (50) CRITICAL / FATAL }

loglevels.py

#!/usr/bin/env python
from __future__ import print_function

import logging

###
def addLevelName__TRACE():
    logging.addLevelName(8, 'TRACE')

###

def get_default_loglevel__dir():
    """
    ::
        [(0, NOTSET),
        (10, DEBUG),
        (20, INFO),
        (30, WARN),
        (30, WARNING),
        (40, ERROR),
        (50, CRITICAL),
        (50, FATAL)]
    """
    return sorted(
            (getattr(logging, x), x) for x in dir(logging)
                if isinstance(getattr(logging, x), int)
                and (x == x.upper()))

def get_default_loglevel__levelNames():
    """
    ::

        {0: NOTSET,
        10: DEBUG,
        20: INFO,
        30: WARNING,
        40: ERROR,
        50: CRITICAL,
        CRITICAL: 50,
        DEBUG: 10,
        ERROR: 40,
        INFO: 20,
        NOTSET: 0,
        WARN: 30,
        WARNING: 30}
    """
    return [(k,v) for k,v in logging._levelNames.items() if isinstance(k, int)]


def print_loglevels():
    print("### DEFAULTS""")
    levels_dir = get_default_loglevel__dir()
    for leveltuple in levels_dir:
        print(repr(leveltuple))

    print("### logging._levelNames""")
    levels_levelNames = get_default_loglevel__levelNames()
    for leveltuple in levels_levelNames:
        print(repr(leveltuple))


def main(argv=None):
    if not argv:
        print_loglevels()
        return 0
    else:
        for levelNames_key in argv:
            try:
                levelNames_key = int(levelNames_key)
            except TypeError:
                pass
            value = logging._levelNames.get(levelNames_key)
            print(value)