import logging

# Create or get the root logger
logger = logging.getLogger(__name__)
logger.setLevel(logging.DEBUG)  # Set the logging level

# Create a file handler
file_handler = logging.FileHandler('app.log')
file_handler.setLevel(logging.DEBUG)  # Set the level for this handler

# Create a console handler (optional, for logging to the console too)
console_handler = logging.StreamHandler()
console_handler.setLevel(logging.INFO)

# Create a logging format
formatter = logging.Formatter('%(asctime)s - %(name)s - %(levelname)s - %(message)s')
file_handler.setFormatter(formatter)
console_handler.setFormatter(formatter)

# Add the handlers to the logger
logger.addHandler(file_handler)
logger.addHandler(console_handler)

# Log some messages
logger.debug("This is a debug message")
logger.info("This is an info message")
logger.warning("This is a warning message")
logger.error("This is an error message")
logger.critical("This is a critical message")