What are some examples of logging in Python?

What are some examples of logging in Python?

In Python, the logging module provides a flexible framework for emitting log messages. Here are a few examples:

1. Basic Logging:

   import logging
   logging.basicConfig(level=logging.INFO)
   logging.info('This is an info message')
   

2. Logging with Different Levels:

   logging.debug('This is a debug message')
   logging.warning('This is a warning message')
   logging.error('This is an error message')
   logging.critical('This is a critical message')
   

3. Logging to a File:

   logging.basicConfig(filename='app.log', level=logging.INFO)
   logging.info('This message will go to a file')
   

Would you like to see more advanced examples?

Yes, can you show me how to log exceptions?

Certainly! You can log exceptions using the exception method. Here's an example:

import logging

logging.basicConfig(level=logging.ERROR)

try:
    1 / 0  # This will raise a ZeroDivisionError
except ZeroDivisionError:
    logging.exception('An exception occurred')

This will log the error message along with the traceback.

How can I customize the log format?

You can customize the log format by using the format parameter in basicConfig. Here's an example:

logging.basicConfig(format='%(asctime)s - %(levelname)s - %(message)s', level=logging.INFO)
logging.info('This is a custom formatted log message')

This will include the timestamp, log level, and message in the log output.