Hello Rustaceans and Pythonistas, The "cpython" and "python3-sys" crates provide Rust bindings for CPython, but the project is no longer actively maintained [0], and it does not support CPython 3.12+ due to ABI / API changes. Programs that use the "cpython" bindings for building against CPython 3.12+ crash at runtime. The upstream project recommends projects to move to the PyO3 bindings, which are much more popular now, are actively maintained, and which have been adding support for new versions of CPython pretty quickly over the past few years. The only package in Fedora that depends on the "cpython" bindings is mercurial, which uses them for building the "mercurial-rust" extensions. These extensions do not work on Fedora 39+ due to the aforementioned changes in Python 3.12+. I reported this as an issue half a year ago [1], but got no response from the mercurial maintainers. My recommendation would be to disable building the mercurial-rust extensions on Fedora 39+ (where they already don't work!) until mercurial upstream moves to PyO3 to properly support CPython 3.12+. I am planning to retire the "rust-cpython" and "rust-python3-sys" crates next week. Fabio [0]: https://github.com/dgrunwald/rust-cpython/commit/e815555 [1]: https://bugzilla.redhat.com/show_bug.cgi?id=2249383 -- _______________________________________________ devel mailing list -- devel@xxxxxxxxxxxxxxxxxxxxxxx To unsubscribe send an email to devel-leave@xxxxxxxxxxxxxxxxxxxxxxx Fedora Code of Conduct: https://docs.fedoraproject.org/en-US/project/code-of-conduct/ List Guidelines: https://fedoraproject.org/wiki/Mailing_list_guidelines List Archives: https://lists.fedoraproject.org/archives/list/devel@xxxxxxxxxxxxxxxxxxxxxxx Do not reply to spam, report it: https://pagure.io/fedora-infrastructure/new_issue
