python suppress exception context in log output смотреть онлайн

In Python, when an exception is raised and logged, the log output typically includes not only the exception type and message but also additional context, such as the traceback. While this additional context can be very helpful for debugging, there are cases where you may want to suppress this context in the log output. This tutorial will show you how to achieve that using the logging module in Python.
Before we start, ensure that you have Python installed on your system. You should also be familiar with the basics of Python and the logging module.
To suppress exception context in log output, you can create a custom Formatter class that modifies the log message to include only the exception type and message, without the traceback. Then, you'll apply this custom formatter to your logger. Here's how you can do it:
In this example:
We define a custom Formatter class called ExceptionTypeOnlyFormatter, which overrides the formatException method to format exceptions with only their type and message, omitting the traceback.
We create a logger named 'my_logger' and set its log level to DEBUG.
We create a FileHandler named 'file_handler' for logging to a file named 'my_log.log'. We set the log level to ERROR and associate the custom formatter ExceptionTypeOnlyFormatter with it.
We add the file handler to the logger.
We intentionally raise a ZeroDivisionError exception, and then log the exception using the logger with exc_info=False to suppress the traceback.
After running the code, you can check the contents of 'my_log.log', and you will find that the log output only contains the exception type and message, not the full traceback.
By creating a custom formatter that overrides the formatException method, you can suppress exception context in your log output and log only the exception type and message. This can be useful when you want to keep your log files clean and concise, especially in production environments where excessive context may not be needed.
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