MAINT: try to silence some coverage warnings

MAINT: mark 3.13.dev failing test as xfail (#14468)

fix jedi test

stricted but no doctests

use capsys

MAINT: mark 3.13.dev failing test as xfail

Convert matplotlib gui name in enable_gui (#14451) This is a bug that I discovered whilst dealing with matplotlib/matplotlib#28332. The change here is in `TerminalInteractiveShell.enable_gui` which needs to convert a gui of `macosx` from Matplotlib into `osx` in IPython. It reuses the converter function created in #14420. I've added a test that uses `enable_gui` and raises an exception before this PR but passes with it. The remainder of the changes are formatting changes from `pre-commit`.

Implement `IPython.utils.io.Tee.isatty` (#14460) A lot of libraries would call `sys.stdout.isatty()`, but `IPython.utils.io.Tee` does not implement `isatty`. Let's add the method to avoid errors.

fixed honoring custom repr for NamedTuple if assigned by partialmethod (#14466) Fixes #14465. - added test `test_custom_repr_namedtuple_partialmethod`

switch to safe_getattr