Oh come on, how can you expect similar execution time between a compiled language like Haskell and an interpreter like Python? I would be very surprised if the

Oh come on, how can you expect similar execution time between a compiled language like Haskell and an interpreter like Python? I would be very surprised if the latter was not several times slower, purity or not. If anything, you may want to compare compiled Haskell code to an impure, imperative language that is also strongly typed, compiled to machine language, and garbage collected, like Go.