[Haskell-cafe] IO (Either a Error) question

[Ivan Lazar Miljenovic]

Limestraël <limestrael at gmail.com> writes:
> 2010/5/1 John Millikin <jmillikin at gmail.com>
>
>> You might want to make a local version of ErrorT in your library, to
>> avoid the silly 'Error' class restriction. This is pretty easy; just
>> copy it from the 'transformers' or 'mtl' package.
>>
> Yes, I wonder why mtl is not updated so as to remove this restriction.

Presumably because its in "maintenance mode" (i.e. it only gets
changed/updated to reflect changes in GHC that might affect it and the
API is frozen).

-- 
Ivan Lazar Miljenovic
Ivan.Miljenovic at gmail.com
IvanMiljenovic.wordpress.com