Python Logging with YAML configuration

log.py

import logging
import logging.config
import yaml
from pathlib import Path

# https://stackoverflow.com/a/52266636/918858
here = Path(__file__).parent
LOG_CFG = here/'logging.yaml'


def init_default_local_logging():
    with open(LOG_CFG, 'rt') as f:
        config = yaml.safe_load(f.read())
        logging.config.dictConfig(config)
        
        
# in use
init_default_local_logging()
logger = logging.getLogger(__name__)

# this should not disable any logging configuration from things like imported libraries
logger.info("hello")

logging.yaml

---
version: 1
# this disable_existing_loggers set to False is critical, otherwise if you load this config, it disables existing loggers
disable_existing_loggers: False
formatters:
  simple:
    format: '%(asctime)s %(levelname)s %(name)s - %(message)s'
    datefmt: '%Y-%m-%d %H:%M:%S'

handlers:
  console:
    class: logging.StreamHandler
    formatter: simple
    level: DEBUG
    stream: ext://sys.stdout
  file:
    class: logging.handlers.RotatingFileHandler
    formatter: simple
    level: DEBUG
    filename: my_log.log
    maxBytes: 1048576
    backupCount: 3

root:
    level: DEBUG
    handlers: [console, file]