Bug summary

from pylab import *
ax = gca()
marginal = ax.inset_axes([1, 0, .1, 1], sharey=ax)
marginal.remove()
ax.set(ylim=(10, 20))

currently fails with

AttributeError: 'NoneType' object has no attribute 'canvas'

(when trying to propagate the change to the removed inset)

Compare with removal of normal shared axes (e.g., axs = subplots(2, sharey=True); axs[1].remove(); axs[0].set(ylim=(10, 20)) which works fine.

This is because add_child_axes makes the inset's remove_method be self.child_axes.remove, which skips the shared-grouper-teardown code present in Figure.delaxes.

Code for reproduction

above

Actual outcome

exception

Expected outcome

no exception

Operating system

fedora

Matplotlib Version

3.5.0.dev2434+g7eaf90b387

Matplotlib Backend

any

Python version

39

Jupyter version

No response

Other libraries

No response

Installation

No response

Conda channel

No response