Python 3 Logging using DictConfig

Here's a full example of using DictConfig in Python 3:

import logging
import logging.config


def configure_logger(name, log_path):
    logging.config.dictConfig({
        'version': 1,
        'formatters': {
            'default': {'format': '%(asctime)s - %(levelname)s - %(message)s', 'datefmt': '%Y-%m-%d %H:%M:%S'}
        },
        'handlers': {
            'console': {
                'level': 'DEBUG',
                'class': 'logging.StreamHandler',
                'formatter': 'default',
                'stream': 'ext://sys.stdout'
            },
            'file': {
                'level': 'DEBUG',
                'class': 'logging.handlers.RotatingFileHandler',
                'formatter': 'default',
                'filename': log_path,
                'maxBytes': 1024,
                'backupCount': 3
            }
        },
        'loggers': {
            'default': {
                'level': 'DEBUG',
                'handlers': ['console', 'file']
            }
        },
        'disable_existing_loggers': False
    })
    return logging.getLogger(name)

alog = configure_logger('default', 'log13.txt')
alog.debug('debug message!')
alog.info('info message!')
alog.error('error message')
alog.critical('critical message')
alog.warning('warning message')

This logs to both the console and a log file. Here's the output:

2014-11-04 23:57:44 - DEBUG - debug message!
2014-11-04 23:57:44 - INFO - info message!
2014-11-04 23:57:44 - ERROR - error message
2014-11-04 23:57:44 - CRITICAL - critical message
2014-11-04 23:57:44 - WARNING - warning message

The following articles were very helpful in figuring this out:

http://stackoverflow.com/questions/7507825/python-complete-example-of-dict-for-logging-config-dictconfig
http://stackoverflow.com/questions/3220284/how-to-customize-the-time-format-for-python-logging
https://docs.python.org/3/library/logging.config.html#logging.config.dictConfig

(Bits and pieces from the these articles were customized for the example above)

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