Sample config for Python's logging module. Load it with ` logging.config.dictConfig(yaml.load(open('path/to/config','r')))`.

log.yml

version: 1
formatters:
    simple:
        format: "%(asctime)s - %(name)s - %(levelname)s - %(message)s"
handlers:
    console:
        class: logging.StreamHandler
        formatter: simple
        level: DEBUG
        stream: ext://sys.stdout
    file_debug:
        class: logging.handlers.RotatingFileHandler
        formatter: simple
        level: DEBUG
        filename: /path/to/debug.log
        maxBytes: 10485760
        backupCount: 3
    file_info:
        class: logging.handlers.RotatingFileHandler
        formatter: simple
        level: INFO
        filename: /path/to/info.log
        maxBytes: 10485760
        backupCount: 3
    file_error:
        class: logging.handlers.RotatingFileHandler
        formatter: simple
        level: ERROR
        filename: /path/to/error.log
        maxBytes: 10485760
        backupCount: 3

root:
    level: DEBUG
    handlers: [console, file_info, file_error, file_debug]