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Saturday, July 9, 2022

[FIXED] How to use "raise" keyword in Python

 July 09, 2022     keyword, python, raise     No comments   

Issue

I have read the official definition of "raise", but I still don't quite understand what it does.

In simplest terms, what is "raise"?

Example usage would help.


Solution

It has 2 purposes.

jackcogdill has given the first one.

It's used for raising your own errors.

if something:
    raise Exception('My error!')

The second is to reraise the current exception in an exception handler, so that it can be handled further up the call stack.

try:
  generate_exception()
except SomeException as e:
  if not can_handle(e):
    raise
  handle_exception(e)


Answered By - Ignacio Vazquez-Abrams
Answer Checked By - Dawn Plyler (PHPFixing Volunteer)
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