[Haskell-beginners] apt cabal hackage

[csmagic]

On Thu, Sep 22, 2011 at 4:20 PM, Amy de Buitléir <amy at nualeargais.ie> wrote:

> csmagic <csmagic <at> gmail.com> writes:
>
> >
> > Thanks Joey, AmyNow I want to go 'backwards'.For example I have
> > Language.Haskell.Exts.SyntaxI want to dig into it.  Where/How do I start?
>
> Using either Hayoo or Hoogle, search for "Language.Haskell.Exts.Syntax".
> Click on
> the results to find out more about this module (what package it's in, what
> methods it contains, etc.) Does that answer your question?
>

Trying out the graphviz package...

$ cabal list|grep -i graphviz
gives
cabal: <stdout>: invalid argument
and nothing else

But still
$ cabal install graphviz
still seems to install

What gives?
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