MacOSX backend not correctly found/used as matplotlib interactive backend

[jeanconn]

Description
MacOSX backend not found on mac.

To Reproduce
Steps to reproduce the behavior

(ska3) ➜  ~ ipython --matplotlib
Python 3.11.8 | packaged by conda-forge | (main, Feb 16 2024, 20:49:36) [Clang 16.0.6 ]
Type 'copyright', 'credits' or 'license' for more information
IPython 8.22.1 -- An enhanced Interactive Python. Type '?' for help.
Using matplotlib backend: <object object at 0x104863b00>   <=== ********* weird ********

In [1]: import matplotlib.pyplot as plt

In [2]: plt.plot()
Out[2]: []  

Expected behavior
A clear and concise description of what you expected to happen.

(ska3) flame:~ jean$ ipython --matplotlib
Python 3.10.8 | packaged by conda-forge | (main, Nov 22 2022, 08:27:35) [Clang 14.0.6 ]
Type 'copyright', 'credits' or 'license' for more information
IPython 8.26.0 -- An enhanced Interactive Python. Type '?' for help.
Using matplotlib backend: MacOSX

In [1]: from matplotlib import pyplot as plt

In [2]: plt.plot([0, 1], [1, 2])
Out[2]: [<matplotlib.lines.Line2D at 0x115f6f190>]

Additional context
Add any other context about the problem here.

In my dev ska3 environments I was able to fix this by upgrading ipython from 8.22.1 to 8.26.0 .