Bug summary
Custom xticklabels can have their baselines misaligned.
Code for reproduction
from pylab import *
mpl.rcdefaults()
mpl.rcParams.update({"font.size": 9})
figure(figsize=(.5, .5), layout="constrained")
# push the xticks next to one another to make things more visible
yticks([]); xlim(-2, 3); xticks([0, 1])
gca().xaxis.set_major_formatter(lambda x, i: "pol." if x == 0 else str(int(x)))
show()Actual outcome
Note the baseline misalignment between "pol." and "1".
Expected outcome
No misalignment.
Additional information
Although this may seem similar to #31802, this is a regression in 3.11 (present both in agg and in mplcairo) -- I don't know if something else broke a previously accidentally correct alignment, and didn't run a full bisection.
Maybe related to #31107.
Operating system
macos
Matplotlib Version
matplotlib-3.12.0.dev427+g4f7461066; bisected against 3.10.9
Matplotlib Backend
agg or mplcairo
Python version
3.14
Jupyter version
No response
Installation
git checkout
Bug summary
Custom xticklabels can have their baselines misaligned.
Code for reproduction
Actual outcome
Note the baseline misalignment between "pol." and "1".
Expected outcome
No misalignment.
Additional information
Although this may seem similar to #31802, this is a regression in 3.11 (present both in agg and in mplcairo) -- I don't know if something else broke a previously accidentally correct alignment, and didn't run a full bisection.
Maybe related to #31107.
Operating system
macos
Matplotlib Version
matplotlib-3.12.0.dev427+g4f7461066; bisected against 3.10.9
Matplotlib Backend
agg or mplcairo
Python version
3.14
Jupyter version
No response
Installation
git checkout