Bug summary

Offset notation on the y-axis creates a "+1" or similar marker that overlaps a long title.

Code for reproduction

import matplotlib.pyplot as plt
import random
random.seed(123)
x = [n for n in range(100)]
y = [1 + random.random()/1000 for _ in range(100)]
fig, ax = plt.subplots()
ax.plot(x, y, '.-', label="random values near 1.0")
ax.set_title('abcdefghijklmnopqrstuvwxyz' + ' test ' + ' abcdefghijklmnopqrstuvwxyz')
ax.set_ylabel("y")
ax.set_xlabel("x")
ax.legend()
fig.savefig("example.png")
plt.show()

Actual outcome

Expected outcome

Additional information

There are workarounds such as passing arguments like y=1.03 or pad=15 to set_title() to push the title up manually. However, this should not be necessary as the documentation says "y is determined automatically to avoid decorators on the Axes" (see pull request #17127). Note also that setting constrained_layout=True does not change the output.

Operating system

Windows 10

Matplotlib Version

3.4.3

Matplotlib Backend

module://matplotlib_inline.backend_inline

Python version

3.9.7

Jupyter version

6.4.5

Installation

conda