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{"@context":"https://schema.org","@type":"DiscussionForumPosting","headline":"`test_itertools.py` does not test infinite iterable for `itertools.chain.from_iterable`","articleBody":"\u003c!--\r\n  If you're new to Python and you're not sure whether what you're experiencing is a bug, the CPython issue tracker is not\r\n  the right place to seek help. Consider the following options instead:\r\n\r\n  - reading the Python tutorial: https://docs.python.org/3/tutorial/\r\n  - posting in the \"Users\" category on discuss.python.org: https://discuss.python.org/c/users/7\r\n  - emailing the Python-list mailing list: https://mail.python.org/mailman/listinfo/python-list\r\n  - searching our issue tracker (https://github.com/python/cpython/issues) to see if\r\n    your problem has already been reported\r\n--\u003e\r\n\r\n**Bug report**\r\n\r\n`itertools.chain.from_iterable` is safe to use with infinite iterable, but no test exists.\r\n\r\nexample:\r\n```python\r\nchain.from_iterable(repeat(range(5)))\r\n```\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:\r\n`3.10.4` and current `main` branch\r\n\r\n- Operating system and architecture:\r\nN/A\r\n","author":{"url":"https://github.com/youknowone","@type":"Person","name":"youknowone"},"datePublished":"2022-06-14T15:30:00.000Z","interactionStatistic":{"@type":"InteractionCounter","interactionType":"https://schema.org/CommentAction","userInteractionCount":2},"url":"https://github.com/93814/cpython/issues/93814"}