Log file writing in python and aall.pptx

log file

1. LOG file Writing

2. A log file in Python is a record of events generated by a program during its execution. It includes messages, warnings, and errors that can be crucial for understanding the program’s behavior. Python provides a built-in module called logging to facilitate easy logging.

3. Advantages of Log File in Python Debugging : Log files are invaluable during the debugging phase. They provide a detailed history of events, making it easier to identify and rectify issues. Performance Analysis : By analyzing log files, developers can gain insights into the performance of their applications. This includes execution times, resource usage, and potential bottlenecks. Error Tracking : Log files help in tracking errors and exceptions, providing detailed information about the context in which they occurred. This aids in fixing issues promptly.

4. Example 1: Creating and Writing Log File import logging logging.basicConfig(filename="gfg-log.log",filemode="w",format="%(name)s → %(levelname)s: %(message)s") logging.warning("warning") logger = logging.getLogger(__name__) FileOutputHandler = logging.FileHandler('logs.log') logger.addHandler(FileOutputHandler) logger.warning("test.")