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{"@context":"https://schema.org","@type":"DiscussionForumPosting","headline":"`_sre.compile` overwrites `TypeError` with `OverflowError`","articleBody":"# Bug report\n\nReproduction:\n\n```python\n\u003e\u003e\u003e import _sre\n\u003e\u003e\u003e _sre.compile('', 0, ['abc'], 0, {}, ())\nTraceback (most recent call last):\n  File \"\u003cstdin\u003e\", line 1, in \u003cmodule\u003e\nOverflowError: regular expression code size limit exceeded\n```\n\nIt should be:\n\n```python\n\u003e\u003e\u003e import _sre\n\u003e\u003e\u003e _sre.compile('', 0, ['abc'], 0, {}, ())\nTraceback (most recent call last):\n  File \"\u003cstdin\u003e\", line 1, in \u003cmodule\u003e\nTypeError: an integer is required\n```\n\nBecause the third arg is `code: object(subclass_of='\u0026PyList_Type')`, it is assumed to be integers inside.\n\nProblematic lines: https://github.com/python/cpython/blob/def7ea5cec41e8d3112641bb4af7572c0ac4f380/Modules/_sre/sre.c#L1510-L1515\n\nThey do not check for `PyLong_AsUnsignedLong` errors.\nI have a PR ready :)\n\n\u003c!-- gh-linked-prs --\u003e\n### Linked PRs\n* gh-110591\n* gh-110613\n* gh-110614\n\u003c!-- /gh-linked-prs --\u003e\n","author":{"url":"https://github.com/sobolevn","@type":"Person","name":"sobolevn"},"datePublished":"2023-10-10T07:43:35.000Z","interactionStatistic":{"@type":"InteractionCounter","interactionType":"https://schema.org/CommentAction","userInteractionCount":0},"url":"https://github.com/110590/cpython/issues/110590"}