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{"@context":"https://schema.org","@type":"DiscussionForumPosting","headline":"`sys.flags.gil` should be a \"sequence\" attribute","articleBody":"# Bug report\n\n`sys.flags` is a [`PyStructSequence`](https://docs.python.org/3/c-api/tuple.html#struct-sequence-objects). `PyStructSequence`  is similar to a named tuple, but it can have attributes that are not part of the sequence.\n\nCurrently, `sys.flags.gil` is not a \"sequence\" attribute:\n\n```python\n\u003e\u003e\u003e import sys\n\u003e\u003e\u003e sys.flags\nsys.flags(debug=0, inspect=0, interactive=0, optimize=0, dont_write_bytecode=0, no_user_site=0, no_site=0, ignore_environment=0, verbose=0, bytes_warning=0, quiet=0, hash_randomization=1, isolated=0, dev_mode=False, utf8_mode=0, warn_default_encoding=0, safe_path=False, int_max_str_digits=4300)\n```\n\nI think this was an oversight. We forgot to update the `n_in_sequence` field from 18 to 19 in gh-116338:\n\nhttps://github.com/python/cpython/blob/fda6bd842a2b93a501526f1b830eb900d935ac73/Python/sysmodule.c#L3123-L3128\n\n\u003c!-- gh-linked-prs --\u003e\n### Linked PRs\n* gh-122576\n\u003c!-- /gh-linked-prs --\u003e\n","author":{"url":"https://github.com/colesbury","@type":"Person","name":"colesbury"},"datePublished":"2024-08-01T18:30:30.000Z","interactionStatistic":{"@type":"InteractionCounter","interactionType":"https://schema.org/CommentAction","userInteractionCount":8},"url":"https://github.com/122575/cpython/issues/122575"}