I'm unable to reproduce this in a fresh install; ipython3 appears to start and function normally.
I suspect there is something wrong with other dependencies of python3-ipython; `List` in `interactiveshell.py` in ipython 8.30 isn't `typing.List` (which is imported, but aliased as `ListType`), but `traitlets.List`. However, both of these types are subscriptable, which suggests that maybe there is an older version of traitlets (or some other transitive dependency) getting imported? ``` Python 3.13.3 (main, Apr 10 2025, 21:38:51) [GCC 14.2.0] on linux Type "help", "copyright", "credits" or "license" for more information. >>> import traitlets >>> traitlets <module 'traitlets' from '/usr/lib/python3/dist-packages/traitlets/__init__.py'> >>> traitlets.__version__ '5.14.3' >>> import ast >>> traitlets.List[ast.NodeTransformer] traitlets.traitlets.List[ast.NodeTransformer] ```
