from cement import App
​
class MyApp(App):
    class Meta:
        label = 'myapp'
        extensions = ['colorlog']
        log_handler = 'colorlog'
​
with MyApp() as app:
    app.run()
    app.log.debug('This is my debug message')
    app.log.info('This is my info message')
    app.log.warning('This is my warning message')
    app.log.error('This is my error message')
    app.log.fatal('This is my critical message')

from cement import App, init_defaults
​
META = init_defaults('log.colorlog')
META['log.colorlog']['colors'] = {
    'DEBUG':    'cyan',
    'INFO':     'green',
    'WARNING':  'yellow',
    'ERROR':    'red',
    'CRITICAL': 'red,bg_white',
}
​
class MyApp(App):
    class Meta:
        label = 'myapp'
        extension = ['colorlog']
        log_handler = 'colorlog'
        meta_defaults = META