About 12,300,000 results
Open links in new tab
  1. Manually raising (throwing) an exception in Python

    How do I raise an exception in Python so that it can later be caught via an except block?

  2. How to use "raise" keyword in Python - Stack Overflow

    63 raise without any arguments is a special use of python syntax. It means get the exception and re-raise it. If this usage it could have been called reraise.

  3. Python "raise from" usage - Stack Overflow

    What's the difference between raise and raise from in Python?

  4. What is the proper way to raise an exception in Python?

    Oct 24, 2012 · if len(sys.argv) == 1: raise EmptyArgs('Specify at least 1 argument') See the documentation for the raise statement Python 2 had a few more options, these have been …

  5. How do I declare custom exceptions in modern Python?

    By "modern Python" I mean something that will run in Python 2.5 but be 'correct' for the Python 2.6 and Python 3.* way of doing things. And by "custom" I mean an Exception object that can …

  6. python - How to raise a ValueError? - Stack Overflow

    Dec 9, 2010 · By-the-way, I think find_last(), find_last_index(), or something simlar would be a more descriptive name for this function. Adding to the possible confusion is the fact that …

  7. python - How to re-raise an exception in nested try/except blocks ...

    Aug 12, 2013 · 206 I know that if I want to re-raise an exception, I simple use raise without arguments in the respective except block. But given a nested expression like

  8. How do I raise the same Exception with a custom message in …

    Feb 6, 2012 · This fails to answer the actual question. Yes, we all know how to chain Python 3.x exceptions in 2020. The actual question is how to modify the original exception message of …

  9. python - Difference between "raise" and "raise e"? - Stack Overflow

    Mar 22, 2016 · In python, is there a difference between raise and raise e in an except block? dis is showing me different results, but I don't know what it means. What's the end behavior of both? …

  10. python - raise statement on a conditional expression - Stack …

    Oct 8, 2022 · 29 Inline/ternary if is an expression, not a statement. Your attempt means "if bool, return value, else return the result of raise expression " - which is nonsense of course, …