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{"@context":"https://schema.org","@type":"DiscussionForumPosting","headline":"Convert _ctypes extension module to multi-phase init","articleBody":"# Feature or enhancement\r\n\r\n### Proposal:\r\n\r\nThis issue is available to keep track of PRs, following the heap type conversion completed at #114314.\r\n\r\n### TODO:\r\n- ~[ ]  Make `free_list` in `malloc_closure.c` per-module variables.~ [rejected](https://github.com/python/cpython/pull/117874#issuecomment-2096089529)\r\n- [x]  Fix intentional memory leaks of `StgInfo` during a finalization: [comment](https://github.com/python/cpython/pull/117181#issuecomment-2029764312).\r\n- [x]  Enable `Py_MOD_MULTIPLE_INTERPRETERS_SUPPORTED`(DONE): [comment](https://github.com/python/cpython/pull/117181#discussion_r1557516762).\r\nFUTURE?: `Py_MOD_PER_INTERPRETER_GIL_SUPPORTED` after a compatible `PyGILState_Ensure()` is introduced, see also the links below.\r\n\r\n\r\n### Links to documents:\r\n\r\n* [**libffi: a foreign function interface library**](https://gensoft.pasteur.fr/docs/libffi/3.3/libffi.pdf)\r\n* [**libffi - GitHub**](https://github.com/libffi/libffi)\r\n\r\n### Links to previous discussion of this feature:\r\n\r\n* #103092\r\n* #114314\r\n* **`PyGILState_Ensure()`** for sub-interpreters:\r\n  * #59956\r\n  * #55124\r\n    * [`_ctypes` patch](https://bugs.python.org/file20417/gilstateinterp.patch) (2011)\r\n\r\n\u003c!-- gh-linked-prs --\u003e\r\n### Linked PRs\r\n* gh-117143\r\n* gh-117181\r\n* gh-117189\r\n* gh-117544\r\n* gh-117874\r\n* gh-117875\r\n* gh-118139\r\n* gh-119424\r\n* gh-119468\r\n* gh-119991\n* gh-120008\n\u003c!-- /gh-linked-prs --\u003e\r\n","author":{"url":"https://github.com/neonene","@type":"Person","name":"neonene"},"datePublished":"2024-03-22T00:03:28.000Z","interactionStatistic":{"@type":"InteractionCounter","interactionType":"https://schema.org/CommentAction","userInteractionCount":8},"url":"https://github.com/117142/cpython/issues/117142"}