from dash.dash_table.Format import Format, Group, Scheme, Symbol columns=[{ 'id': 'euros', 'name': 'euros', 'type': 'numeric', 'format': Format( scheme=Scheme.fixed, precision=2, group=Group.yes, groups=3, group_delimiter=', ', decimal_delimiter='.', symbol=Symbol.yes, symbol_prefix=u'€') }]