How can I create a custom logging format in Python?

How can I create a custom logging format in Python?

You can create a custom logging format in Python by using the logging module and defining a format string.

Can you show me an example of a custom format?

Sure! Here's a simple example:

import logging

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

# Set up logging
handler = logging.StreamHandler()
handler.setFormatter(formatter)
logger = logging.getLogger('my_logger')
logger.addHandler(handler)
logger.setLevel(logging.DEBUG)

logger.debug('This is a debug message')

What do the format specifiers mean?

In the format string:

• %(asctime)s is the time when the log entry was created.
• %(name)s is the name of the logger.
• %(levelname)s is the severity level of the log message.
• %(message)s is the actual log message.

Can I log to a file instead of the console?

Yes, you can log to a file by using logging.FileHandler instead of logging.StreamHandler. Just specify the filename.