[Haskell-cafe] Module name to package name index

Harendra Kumar harendra.kumar at gmail.com
Sun Mar 13 17:52:24 UTC 2016

That's cool! That's what I wanted.

I wish we could have the same thing available on Hackage as well. Some of
the packages (NLP related) that I was looking at are only available on


On Sun, Mar 13, 2016 at 7:50 PM, Michael Snoyman <michael at snoyman.com>

> You can see a list of all modules for each Stackage snapshot, eg
> https://www.stackage.org/lts-5.7/docs
> On Sun, Mar 13, 2016, 2:11 PM Harendra Kumar <harendra.kumar at gmail.com>
> wrote:
>> Is there something available which can answer questions like this -  what
>> all packages on Hackage export "Data.List" module? Another useful question
>> could be - what all packages export symbol named 'x'? Hackage search or
>> hoogle are not helpful in providing a precise answer to these.
>> I am assuming that related functionality usually lands up in the same
>> part of the module namespace. This fact can help us in discovering related
>> or alternative packages or functions available in a given area. For example
>> when I am looking for list related functions I can search for who all
>> exports "Data.List".
>> I guess creating such an index should not be difficult. All the necessary
>> information is available in the packages' .cabal files, we just need to
>> extract it and create a module name to package name index.
>> -harendra
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