Invalid argument `columns[1].name` passed into DataTable

Dash Python
2

I had just ran into the same error, and for me the issue was that the column names were integers and not strings. so then the dictionary created in

columns=[{'name': i, 'id': i,} for i in df.columns]

gets an error because it will read {‘name’: 2013, ‘id’: ‘2013’} and not {‘name’: ‘2013’, ‘id’: ‘2013’}.

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