To be honest, I never heard of a "Haskell Package" before. Seems that Haskell is a "purely functional" programming language with non-strict semantics, named after logician Haskell Curry. It is worth 30MB of software code, downloadable on Hackage, and exists of about 1125 separate packages, made up of thousands of modules, with hundreds of thousands of import dependencies between them.
The reason you want to know this, is to understand how Don Stewart wanted to visualize the whole Haskell module namespace. That is, to see, in one image, all the modules as a panoramic view of the Haskell landscape. The result can be explored at his blog post [donsbot.wordpress.com], and is the result of developing a custom-made graphing tool called cabalgraph.
If you are interested in this and the beauty of programming code in general, then do not miss Linux Kernel Graphing, Computer Virus Visualization and the History of Programming Languages and the good old Code Profiles.