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{"@context":"https://schema.org","@type":"DiscussionForumPosting","headline":"_winapi.LCMapStringEx fails when encountering a string containing null characters","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\nThis bug was encountered when working through gh-106816, specifically [this comment chain.](https://github.com/python/cpython/pull/106816#discussion_r1265830012)\r\n\r\n`_winapi.LCMapStringEx()` raises the error `ValueError: embedded null character` when passed a string containing a null character.\r\n\r\nThis can be reproduced by running the following:\r\n```\r\nimport _winapi\r\n_winapi.LCMapStringEx('abc\\x00def')\r\n```\r\n\r\n[From the discussion](https://github.com/python/cpython/pull/106816#discussion_r1265891092) in the linked PR it looks like the `LCMapStringEx` [implementaion in 3.11](https://github.com/python/cpython/blob/3.11/Modules/_winapi.c#L1551) has already been improved to handle null characters and so maybe the same change can be brought forward into the 3.12 and 3.13 implementations?\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: 3.13.0a0\r\n- Operating system and architecture: Windows 11 on amd64\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-106857\n* gh-107832\n* gh-107874\n* gh-107875\n\u003c!-- /gh-linked-prs --\u003e\n","author":{"url":"https://github.com/finnagin","@type":"Person","name":"finnagin"},"datePublished":"2023-07-17T23:13:27.000Z","interactionStatistic":{"@type":"InteractionCounter","interactionType":"https://schema.org/CommentAction","userInteractionCount":2},"url":"https://github.com/106844/cpython/issues/106844"}