Comments (2)
I also get this error when trying to deserialize instances of classes which inherit from other classes. I'm wondering if it's an issue that specifically affects inherited classes.
from pandas import CategoricalDtype
import dill
class CatDtype(CategoricalDtype):
def __init__(self, categories, ordered, other):
super().__init__(categories=categories, ordered=ordered)
self.other = other
cdt = CatDtype(categories=['A', 'B'], ordered=False, other='TEMP')
dill.dump(cdt, open('temp', 'wb'))
cdt2 = dill.load(open('temp', 'rb'))
cdt2.other
Results in:
AttributeError: 'CatDtype' object has no attribute 'other'
from dill.
I actually figured out above ^ it is because the inherited class had custom __getstate__
and __setstate__
from dill.
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from dill.