issue_comments: 1026656699

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https://github.com/pydata/xarray/issues/6226#issuecomment-1026656699 https://api.github.com/repos/pydata/xarray/issues/6226 1026656699 IC_kwDOAMm_X849MYm7 10580038 2022-02-01T09:52:39Z 2022-02-01T09:52:39Z CONTRIBUTOR

I just ran into the very same issue. Are you sure that this is a problem with pandas? I've had a look into the pandas changes between 1.3.X and 1.4.X. Apparently the _new_Index method, which gets involved when serialising the index object, has been changed:

elif "dtype" not in d and "data" in d: # Prevent Index.__new__ from conducting inference; # "data" key not in RangeIndex d["dtype"] = d["data"].dtype return cls.__new__(cls, **d)

the problem is, that __new__ doesn't except a dtype argument. I've tried adding a dtype argument and it works. So I guess since this class inherits from pd.Index it needs to be updated?

 
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