Remove FrozenNDArray by WillAyd · Pull Request #29335 · pandas-dev/pandas (original) (raw)
This seems to have caused the problem described here:
which I'm now also experiencing. I dumped a MultiIndex dataframe containing ndarrays to a pickle on disk under pandas 0.25.x in Python 3.6, and now I'm getting:
AttributeError: Can't get attribute 'FrozenNDArray' on <module 'pandas.core.indexes.frozen'
when trying to load it in pandas 1.0.3 (still on Python 3.6). Any suggestions/workarounds? Should I instead open up a new issue?
This solved issue seems related, but is for Python 2.7:
This comment in the original rationale for getting rid of FrozenNDArray mentions pandas.compat.pickle_compat.py, which seems relevant: