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{"@context":"https://schema.org","@type":"DiscussionForumPosting","headline":"contextlib.suppress does not support ExceptionGroups","articleBody":"Currently, `contextlib.suppress` does not successfully suppress exceptions that are wrapped within an `ExceptionGroup`.\r\n\r\nIn other words, this works:\r\n```python\r\ndef raise_ve():\r\n    raise ValueError(\"ve\")\r\n\r\nwith suppress(ValueError):\r\n    raise_ve()\r\n```\r\n\r\nwhile this doesn't:\r\n```python\r\ndef raise_ve_eg():\r\n    raise ExceptionGroup(\"eg\", [ValueError(\"ve\")])\r\n\r\nwith suppress(ValueError):\r\n    raise_ve_eg()\r\n```\r\n\r\nThe user's intent is to suppress the latter case, too. It should work just as well, removing `ValueError` instances from the exception group. If it ends up empty, nothing gets raised. Otherwise, an `ExceptionGroup` should be re-raised with the remaining exceptions. For instance:\r\n\r\n```python\r\ndef raise_ve_eg3():\r\n    raise ExceptionGroup(\"eg\", [ValueError(\"ve1\"), KeyError(\"ke\"), ValueError(\"ve2\")])\r\n\r\nwith suppress(ValueError):\r\n    raise_ve_eg3()\r\n```\r\n\r\nshould raise an `ExceptionGroup` with the `KeyError(\"ke\")` only, as we suppressed ValueError instances.\r\n\r\n\u003c!-- gh-linked-prs --\u003e\r\n### Linked PRs\r\n* gh-103792\r\n* gh-111910\n* gh-111955\n\u003c!-- /gh-linked-prs --\u003e\r\n","author":{"url":"https://github.com/ambv","@type":"Person","name":"ambv"},"datePublished":"2023-04-24T20:23:10.000Z","interactionStatistic":{"@type":"InteractionCounter","interactionType":"https://schema.org/CommentAction","userInteractionCount":0},"url":"https://github.com/103791/cpython/issues/103791"}