bpo-45464: Add a warning about subclassing built-in exceptions by pablogsal · Pull Request #28995 · python/cpython
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| exceptions so that the final line of the traceback always shows the last | ||
| exception that was raised. | ||
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| .. warning:: Creating a subclass that inherits from multiple exceptions may not |
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I still prefer the warning because I think this should have more visibility and he have done this in the past for exactly this reason. In any case, I am happy to take a suggestion on how to make this more affirmative while keeping it visible.
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