python logging sample set logging level and formatter. Out put on log file and console log.

logging_sample.py

import logging

# Create a logger.
logger = logging.getLogger(__name__)

# Set logger log level.
logger.setLevel(logging.DEBUG)



# Create a logging formatter
formatter = logging.Formatter("%(asctime)s - %(name)s - %(levelname)s - %(message)s")



# For out put log file.
# Create a FileHander and named.
fh = logging.FileHandler("sample.log")

# Add formatter to the file handler.
fh.setFormatter(formatter)

# Set logging level on file handler.
fh.setLevel(logging.INFO)

# Add the handler to the logger.
logger.addHandler(fh)



# For out put on console log.
# Create a console handler.
ch = logging.StreamHandler()

# Add formatter to the console handler.
ch.setFormatter(formatter)

# Set logging level on console handler.
ch.setLevel(logging.DEBUG)

# Add the console handler to the logger.
logger.addHandler(ch)



# logging test
logger.info("INFO")
logger.debug("DEBUG")