New submission from kryheb <krystianheberl...@gmail.com>:
Hi all, I observed misbehavior trying to embed the Python interpreter into a C app. It seems that after re-initialization, PyImport_Inittab is malformed and points to the memory freed _PyImport_Fini2. Steps to reproduce: 1. Append embedded module 2. Initialize Python from config with run_filename 3. Run main with an infinite loop 4. Interrupt script execution with async call 5. Finalize Python 6. Repeat all above Observed behavior: The script is executed at first iteration, but re-initialization fails with an error: " Traceback (most recent call last): File "<frozen importlib._bootstrap>", line 1187, in _install_external_importers ModuleNotFoundError: No module named 'posix' Error: external importer setup failed " Head of modules list at fist run: ------ Modules: ------ #0 'posix' #1 'errno' #2 'pwd' ---------------------- and after re-initialization: ------ Modules: ------ #0 'P '' #1 'errno' #2 'pwd' ---------------------- An issue discovered on: Fedora 33 gcc (GCC) 10.3.1 20210422 (Red Hat 10.3.1-1) python3-devel.x86_64 3.9.5-2.fc33 Issue still exists on the latest main and on the rc 3.10 Source code to reproduce an issue in attachment. Best regards, Krystian Heberlein ---------- components: C API, Library (Lib) files: inittab-bug.c messages: 395985 nosy: kryheb priority: normal severity: normal status: open title: Malformed PyImport_Inittab after re-initialization versions: Python 3.10, Python 3.9 Added file: https://bugs.python.org/file50115/inittab-bug.c _______________________________________ Python tracker <rep...@bugs.python.org> <https://bugs.python.org/issue44441> _______________________________________ _______________________________________________ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
