On Sunday 11 July 2010 18:02:46, Jason Dagit wrote:

Did you forget to upload the 2.5 beta to hackage? The latest version I see is in the 2.4 series.

Thanks, Jason

I think the darcs A.B beta is versioned A.(B-1).98/99.x (so the beta has smaller version than the release), hence 2.4.98.1 should be the 2.5 beta.

On Sun, Jul 11, 2010 at 2:05 PM, wrote:

OK, I know this is a newbie kind of thing (I guess I am a newbie to GHCi).  I've been over and over and over the wiki and I just can't find the answer to this very, very elementary question.  How can I load a package that I've downloaded using Cabal into GHCi?  When I do the :l, it just doesn't see the thing.  On one level, this is clear: the downloaded Cabal packages (yes, more than one) are under .cabal in $HOME and not in the lib/ghc area.  OK, fine.  But there's no package data base to point to so that the packages can be loaded.

This just *has* to be a simple thing, but I just can't find it, no matter how flat my head gets beating against the wall.  I apologize for the density of my skull, but can someone point me in the right direction here?

GHCi automatically loads the package, you just need to put the modules into scope. This is analogous to using an "import" declaration. For example: GHCi, version 6.10.4: http://www.haskell.org/ghc/ :? for help Loading package ghc-prim ... linking ... done. Loading package integer ... linking ... done. Loading package base ... linking ... done. Prelude> :m Data.ByteString.Char8 Prelude Data.ByteString.Char8> pack "hello" Loading package bytestring-0.9.1.4 ... linking ... done. "hello" Prelude Data.ByteString.Char8> pack "hello" "hello" So, just put the modules you want into scope with :m Module1 Module2 ... or :m Module1 :m +Module2 Module3 :m +Module4 Module5 That should get you started =). Cheers, -- Felipe.

Hello Are you are using HasChorus from this site below? http://meltin.net/hacks/haskell/src/ I think the HasChorus from that site is intended to be used with Paul Hudak's original Haskore rather than Henning Thielemann's extended Haskore (the version on Hackage). You could try installing the package "haskore-vintage" (also on Hackage) which is the original Haskore, and see if you can get it to work with that. Best wishes Stephen

dlb@patriot.net writes:

dlb@Hypno:~/haschorus-1.2.1$ ghci GHCi, version 6.10.4: http://www.haskell.org/ghc/ :? for help Loading package ghc-prim ... linking ... done. Loading package integer ... linking ... done. Loading package base ... linking ... done. Prelude> :m Haskore

No error message here? Haskore should now be in scope. Did you try ':i AbsPitch'? If that worked, and you still get the error below, you need to check HasScales's imports.

Prelude Haskore> :l HasScales [1 of 1] Compiling HasScales ( HasScales.lhs, interpreted )

HasScales.lhs:33:16: Not in scope: type constructor or class `AbsPitch'

And so on (lots of similar errors). Haskore defines AbsPitch.

Did you try :browse Haskore to check that it does, in fact, export AbsPitch?

I can't even load Haskore, because it is a "package module", to wit:

This is expected, you use :m to import those. -k -- If I haven't seen further, it is by standing in the footprints of giants

On Sunday 11 July 2010 19:05:39, dlb@patriot.net wrote:

OK, I know this is a newbie kind of thing (I guess I am a newbie to GHCi). I've been over and over and over the wiki and I just can't find the answer to this very, very elementary question. How can I load a package that I've downloaded using Cabal into GHCi? When I do the :l, it just doesn't see the thing. On one level, this is clear: the downloaded Cabal packages (yes, more than one) are under .cabal in $HOME and not in the lib/ghc area. OK, fine. But there's no package data base to point to so that the packages can be loaded.

After "cabal install"ing the packages (or runhaskell Steup.hs configure --user; build; install), they ought to be registered in the user package-db in $HOME/.ghc/your-ghc-version/package.conf.d and ghci should automatically look there. Can you say what exactly you did to install the packages and what ghc-pkg list reports?

This just *has* to be a simple thing, but I just can't find it, no matter how flat my head gets beating against the wall. I apologize for the density of my skull, but can someone point me in the right direction here?

Thanks.

Dave Barton University of Toronto