Issue with array size in matplotlib using cma.plot()

[clembail]

Python version : 3.14.2

Packages used :

• numpy==2.3.5
• matplotlib==3.10.8
• cma==4.4.1
• ipykernel==7.1.0

I got an issue using cma.plot(), when I tried to plot the graph of cma.f.elli using :

res = cma.fmin2(cma.ff.elli, np.ones(10), 1e-0)
cma.plot(xsemilog=0, plot_mean=1)'

But in return i got the following error :

[nikohansen]

Thanks for the report! If you have the opportunity, could you investigate the value of y in the last context?

In Jupyter, after the error occurs, this should be as simple as

%debug

and then type print(y) in the debug prompt which appears on top.

[clembail]

I obtained this...

[nikohansen]

I can reproduce the behavior with v4.4.1 and the most recent version of matplotlib. While I suspected that text is somewhere called like text(2, [1.63], '...') instead of text(2, 1.63, '...'), I found the offending line 1626 text(_x[-1], c_odds(.... I currently can't locate with certainty the specific location.

I will make a release of v4.4.2 including the fix by tonight (v4.4.2 also did not even have this problem by default).

[nikohansen]

pip install -U cma

will fix this problem.

[clembail]

yep it's all good now, thank you for the prompt response 🙏