'Error pandas groupby : "Expected unicode, got quoted_na"
This instruction : decoke_df.START.groupby(decoke_df.DECOKE_ID).min().to_list()
throws me the error : "Expected unicode, got quoted_na".
The field START comes from a database read by sqlalchemy and is dtype : datetime64[ns]
It looks correct when I look at it and I can do date operations on this field with any problem.
I also get the same error when I replace START by a numeric field, so this is not specific to datetime.
Sources
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Source: Stack Overflow
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