How can I implement custom error handling in Flask?

How can I implement custom error handling in Flask?

You can implement custom error handling in Flask by using the @app.errorhandler decorator. This allows you to define a function that will be called whenever a specific error occurs.

Can you show me an example of how to handle a 404 error?

Sure! You can create a function like this:

@app.errorhandler(404)
def not_found(error):
    return "This page does not exist!", 404

What about handling 500 internal server errors?

For 500 errors, you can do something similar:

@app.errorhandler(500)
def internal_error(error):
    return "An internal error occurred. Please try again later.", 500

Can I log these errors somewhere?

Yes, you can log errors using Python's logging module. You can set up a logger and log the error details in your error handler functions.