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{"@context":"https://schema.org","@type":"DiscussionForumPosting","headline":"upgrade_pythoncapi.py: Wrong transformations for Py_Is","articleBody":"Consider an example:\r\n```c\r\nif (((PyObject*)obj)-\u003edata == Py_None) {\r\n    111;\r\n}\r\nif (Py_None == ((PyObject*)obj)-\u003edata) {\r\n    111;\r\n}\r\n```\r\nAfter ``upgrade_pythoncapi.py`` I got:\r\n```c\r\n#include \"pythoncapi_compat.h\"\r\n\r\nif (((PyObject*)obj)-\u003ePy_IsNone(data)) {\r\n    111;\r\n}\r\nif (Py_None == ((PyObject*)obj)-\u003edata) {\r\n    111;\r\n}\r\n```\r\nReal world example:\r\nhttps://github.com/aleaxit/gmpy/blob/eb8dfcbd84abcfcb36b4adcb0d5c6d050731dd75/src/gmpy2_xmpz_misc.c#L237\r\n\r\nI'm not sure if this is a bug.  This kind of issues is not easy to avoid, using regexps for code transformations.  Have you considered to use something like the [pycparser](https://github.com/eliben/pycparser)?\r\n\r\nThanks for the project.","author":{"url":"https://github.com/skirpichev","@type":"Person","name":"skirpichev"},"datePublished":"2024-03-10T01:33:41.000Z","interactionStatistic":{"@type":"InteractionCounter","interactionType":"https://schema.org/CommentAction","userInteractionCount":2},"url":"https://github.com/86/pythoncapi-compat/issues/86"}