Hi! While rebuilding the python related packages against the Python 3.15rc1 version we found that dill causes a bug in other packages (in this case pylint [1]). The error is that dill tries to access co_lntab which is removed in 3.15, upstream already has a fix for this [2]. I applied the upstream fix in the sandbox [3] to be able to have working packages that depend on dill, please consider applying the patch to support the upcoming 3.15 version. Happy hacking, [1]: https://debusine.debian.net/debian/r-python-python3.15/work-request/1124193/ [2]: https://github.com/uqfoundation/dill/commit/37d2bf717ac7ac110f06be5210f989847959c2cd [3]: https://debusine.debian.net/debian/r-python-python3.15/