Is there a way to see the list of functions in a module, in GHCI?

Question

I find it handy in Python or Common Lisp that you can list a library\'s contents at runtime. Does Haskell have the same thing, in particular from a GHCI prompt?

Answer 1

Depending on exactly what information you intend to extract... If your version of GHCi supports tab-completion, then you can use that to list all of a namespace's available functions:

Prelude> :m +Data.List
Prelude Data.List> Data.List.
Display all 109 possibilities? (y or n) 
Prelude Data.List> Data.List.un
Data.List.unfoldr  Data.List.unlines  Data.List.unzip3   Data.List.unzip6   
Data.List.union    Data.List.unwords  Data.List.unzip4   Data.List.unzip7   
Data.List.unionBy  Data.List.unzip    Data.List.unzip5