Using python’s logging module to log all exceptions and errors

by

It’s probably a bad idea to log any exception thrown within the program, since Python uses exceptions also for normal control flow.

Therefore you should only log uncaught exceptions. You can easily do this using a logger’s exception() method, once you have an exception object.

To handle all uncaught exceptions, you can either wrap your script’s entry point in a try...except block, or by installing a custom exception handler by re-assigning sys.excepthook():

import logging
import sys

logger = logging.getLogger('mylogger')
# Configure logger to write to a file...

def my_handler(type, value, tb):
    logger.exception("Uncaught exception: {0}".format(str(value)))

# Install exception handler
sys.excepthook = my_handler

# Run your main script here:
if __name__ == '__main__':
    main()

More Related Contents:

  1. Python debugging tips [closed]
  2. How to debug a Flask app
  3. How can I see the entire HTTP request that’s being sent by my Python application?
  4. Showing the stack trace from a running Python application
  5. How to step through Python code to help debug issues?
  6. How to debug in Django, the good way? [closed]
  7. Why (0-6) is -6 = False? [duplicate]
  8. How do I run a Python program?
  9. check what files are open in Python
  10. Print current call stack from a method in code
  11. Getting the caller function name inside another function in Python? [duplicate]
  12. filename and line number of Python script
  13. Starting python debugger automatically on error
  14. Trace Python imports
  15. What are good ways to make my Python code run first time? [closed]
  16. Launch an IPython shell on exception
  17. cannot override sys.excepthook
  18. I’m getting a TypeError. How do I fix it?
  19. Python: Print a variable’s name and value?
  20. What all things happens inside pygame when I press a key? When to use pygame.event==KEYDOWN
  21. VS Code starts debugging in integrated terminal instead of debug console
  22. Pretty print a pandas dataframe in VS Code
  23. How can I tell where my python script is hanging?
  24. List comprehension scope error from Python debugger
  25. pydev breakpoints not working
  26. How to watch for a variable change in python without dunder setattr or pdb
  27. Flask Config File – ‘DEBUG=True’ Do Nothing
  28. scipy convolve2d outputs wrong values
  29. Extract traceback info from an exception object
  30. How can I diagnose common errors in JSON data?

Leave a Comment