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{"@context":"https://schema.org","@type":"DiscussionForumPosting","headline":"Stack overflow on GC of deeply nested filter()","articleBody":"\u003c!--\r\n  Use this template for hard crashes of the interpreter, segmentation faults, failed C-level assertions, and similar.\r\n  Do not submit this form if you encounter an exception being unexpectedly raised from a Python function.\r\n  Most of the time, these should be filed as bugs, rather than crashes.\r\n\r\n  The CPython interpreter is itself written in a different programming language, C.\r\n  For CPython, a \"crash\" is when Python itself fails, leading to a traceback in the C stack.\r\n--\u003e\r\n\r\n# Crash report\r\n\r\nThe in-built function filter() crashes as the following:\r\n\r\n```python\r\ni = filter(bool, range(10000000))\r\nfor _ in range(10000000):\r\n    i = filter(bool, i)\r\n```\r\n# Error messages\r\n```\r\nSegmentation fault (core dumped)\r\n```\r\n# Your environment\r\n\r\n\u003c!-- Include as many relevant details as possible about the environment you experienced the bug in --\u003e\r\n\r\n- CPython versions tested on: Python 3.9.12\r\n- Operating system and architecture: Linux hx-rs4810gs 5.15.0-57-generic 63~20.04.1-Ubuntu SMP Wed Nov 30 13:40:16 UTC 2022 x86_64 x86_64 x86_64 GNU/Linux\r\n\r\n\u003c!--\r\nYou can freely edit this text. Remove any lines you believe are unnecessary.\r\n--\u003e\r\n\n\n\u003c!-- gh-linked-prs --\u003e\n### Linked PRs\n* gh-102426\n* gh-102435\n* gh-102436\n\u003c!-- /gh-linked-prs --\u003e\n","author":{"url":"https://github.com/YaoJiayi","@type":"Person","name":"YaoJiayi"},"datePublished":"2023-03-01T18:32:03.000Z","interactionStatistic":{"@type":"InteractionCounter","interactionType":"https://schema.org/CommentAction","userInteractionCount":10},"url":"https://github.com/102356/cpython/issues/102356"}