Describe the issue
Summary
In Matplotlib 2.1, the behavior of reusing existing axes when created with the same arguments was deprecated (see #9037). The request is to finally remove this behavior.
My immediate motivation is that I have a collection of projection classes that take as a keyword argument an instance of astropy.coordinates.SkyCoord, which as of Astropy 4.1 are no longer hashable (see also astropy/astropy#9857). This unexpectedly broke my code because I had not realized that projection keyword arguments had to be hashable.
Proposed fix
Remove the AxesStack class, remove the Figure._make_key method, and update the documentation to reflect the removal of the old deprecated behavior.
Describe the issue
Summary
In Matplotlib 2.1, the behavior of reusing existing axes when created with the same arguments was deprecated (see #9037). The request is to finally remove this behavior.
My immediate motivation is that I have a collection of projection classes that take as a keyword argument an instance of astropy.coordinates.SkyCoord, which as of Astropy 4.1 are no longer hashable (see also astropy/astropy#9857). This unexpectedly broke my code because I had not realized that projection keyword arguments had to be hashable.
Proposed fix
Remove the AxesStack class, remove the
Figure._make_keymethod, and update the documentation to reflect the removal of the old deprecated behavior.