[Haskell-beginners] Multiline code in GHCi

[Shishir Srivastava]

Hi,

I am trying to run this basic multiline code in GHCi. I am not sure if this
is even possible without writing it in a file and compiling it in a
traditional way.

-------
Prelude> :set +m
Prelude> let main1 = do
Prelude|             a <- readLn
Prelude|             return a
Prelude|
Prelude>
Prelude> main1

<interactive>:75:1:
    No instance for (Show (IO b0)) arising from a use of `print'
    In the first argument of `print', namely `it'
    In a stmt of an interactive GHCi command: print it
-------

Could someone please confirm if the function can be defined and called like
this in GHCi or point to where am going wrong.

Thanks,
Shishir Srivastava
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