Closed
Description
I hit this while working on yhat/ggpy#288
AbstractPathEffect is composed of subclass of TransformNode which raises an exception during deepcopy() with the suggestion to use frozen(), but there is no frozen() in AbstractPathEffect.
from matplotlib.patheffects import AbstractPathEffect
from copy import deepcopy
ape = AbstractPathEffect()
deepcopy(ape)
...
121 raise NotImplementedError(
122 "TransformNode instances can not be copied. " +
--> 123 "Consider using frozen() instead.")
124 __deepcopy__ = __copy__
125
but,
ape.frozen()
AttributeError: 'AbstractPathEffect' object has no attribute 'frozen'
I'm not familiar with TransformNode, so this may be a naive question, but why not implement __deepcopy__ as frozen() in that class?