Opened 5 years ago
Last modified 5 years ago
#30516 closed Bug
raise_last_exception doesn't work with exception types with different __init__ signatures — at Initial Version
Reported by: | Alan Trick | Owned by: | nobody |
---|---|---|---|
Component: | Utilities | Version: | 2.2 |
Severity: | Release blocker | Keywords: | autoreload |
Cc: | Tom Forbes | Triage Stage: | Accepted |
Has patch: | yes | Needs documentation: | no |
Needs tests: | no | Patch needs improvement: | no |
Easy pickings: | no | UI/UX: | no |
Description
How to reproduce:
In apps.py, put the following code, and update init.py or the settings to have this app config be used.
from django.apps import AppConfig class MyException(Exception): def __init__(self, value: str, other_thing: str): super().__init__(value) self.ot = other_thing class Config(AppConfig): name = "myapp" verbose_name = "My App" def ready(self): raise MyException("foo", "bar")
The problem is that django.utils.autoreload.raise_last_exception
tries to construct a new exception of the same type, with 1 argument (the original exception). Note that this behavior was changed in c8720e7696ca41f3262d5369365cc1bd72a216ca, it used to just re-raise the exception value. I don't know why it was changed.
I noticed this issue as a result of https://gitlab.com/alantrick/django-vox/issues/9