Python logging in general

#########################
# logging.conf
#########################

[loggers]
keys=root,sampleLogger

[handlers]
keys=consoleHandler

[formatters]
keys=sampleFormatter

[logger_root]
level=INFO
handlers=consoleHandler

[logger_sampleLogger]
level=INFO
handlers=consoleHandler
qualname=sampleLogger
propagate=0

[handler_consoleHandler]
class=StreamHandler
level=INFO
formatter=sampleFormatter
args=(sys.stdout,)

[formatter_sampleFormatter]
format=%(asctime)s - %(name)s - %(levelname)s - %(message)s
datefmt=%Y-%m-%d %H:%M:%S

#########################
# main.py
#########################

import logging, logging.config, json, os

# configure the logger
logging.config.fileConfig('logging.conf')
logger = logging.getLogger(__name__)

# Access all environment variables
logger.info(f'All available environment variables: {os.environ}')

#########################
# main_hardcoded.py
#########################

logging_format = "%(asctime)s - %(name)s - %(levelname)s - %(message)s"
logging_datefmt = "%Y-%m-%d %H:%M:%S"
logging.basicConfig(
    format=self.logging_format, datefmt=self.logging_datefmt, level=logging.INFO
)
logger = logging.getLogger(self.logger_name)