INITIALPATH:7:22: error: • No instance for (RealFloat [Char]) arising from a use of ‘PyF.Internal.QQ.formatAnyFractional’ • In the first argument of ‘putStrLn’, namely ‘((((((PyF.Internal.QQ.formatAnyFractional (PyF.Formatters.Upper PyF.Formatters.Exponent)) PyF.Formatters.Minus) Nothing) Nothing) (Just 6)) hello)’ In the expression: putStrLn ((((((PyF.Internal.QQ.formatAnyFractional (PyF.Formatters.Upper PyF.Formatters.Exponent)) PyF.Formatters.Minus) Nothing) Nothing) (Just 6)) hello) In an equation for ‘main’: main = putStrLn ((((((PyF.Internal.QQ.formatAnyFractional (PyF.Formatters.Upper PyF.Formatters.Exponent)) PyF.Formatters.Minus) Nothing) Nothing) (Just 6)) hello) | 7 | main = putStrLn [fmt|{hello:E}|] | ^^^^^^^^^^^