Bug summary

This is arguably a very weird bug, but it is easy to reproduce. I don't know if the problem is in mpl or jupyterlab.

When using the bit of code below in a notebook, the plot shows once (and only once). Calling the function again prevents the plot to show again (see video).

I am at loss as to why this would happen 😅 . This didn't happen before, but I have no clue as to whether an update to mpl or jupyterlab created the issue.

Code for reproduction

import matplotlib as mpl
import matplotlib.pyplot as plt

figsize=(3, 3)

def plotter():
    with mpl.rc_context({"figure.figsize": figsize}):
        plt.plot([1, 2, 3])

And then:

plotter()

Actual outcome

Expected outcome

The plot should show up on the second call.

Additional information

No response

Operating system

Linux

Matplotlib Version

3.6.3

Matplotlib Backend

module://matplotlib_inline.backend_inline

Python version

3.10

Jupyter version

3.5.2

Installation

None