René's URL Explorer Experiment

{"@context":"https://schema.org","@type":"DiscussionForumPosting","headline":"Regression in tricky __dict__ use.","articleBody":"# Bug report\n\n### Bug description:\n\nI noticed a regression in Python 3.13.0 alpha 6. Django [`LazySettings`](https://github.com/django/django/blob/42bc81b1b6471c4fe364bc32b9dec180908e577e/django/conf/__init__.py#L45) started to [crash](https://github.com/django/django/actions/runs/8670508480/job/23778598639) because `_wrapper` is no longer set to the [`empty`](https://github.com/django/django/blob/42bc81b1b6471c4fe364bc32b9dec180908e577e/django/utils/functional.py#L245) sentinel. I bisected this regression to the c32dc47aca6e8fac152699bc613e015c44ccdba9, so it's related with the recent changes in `__dict__`.\n\nDjango's `LazySettings` and `LazyObject` are quite tricky. I will try to provide a small reproducer later.\n\n### CPython versions tested on:\n\n3.13\n\n### Operating systems tested on:\n\nLinux","author":{"url":"https://github.com/felixxm","@type":"Person","name":"felixxm"},"datePublished":"2024-04-13T08:13:25.000Z","interactionStatistic":{"@type":"InteractionCounter","interactionType":"https://schema.org/CommentAction","userInteractionCount":5},"url":"https://github.com/117838/cpython/issues/117838"}