[Haskell-cafe] Stupid question #374: why is MaybeT not in the standard library?

[Benja Fallenstein]

On Tue, Dec 23, 2008 at 2:52 AM, Antoine Latter <aslatter at gmail.com> wrote:
> Although I still had to use my own because I wanted a MonadPlus
> instance.  I would offer a patch, but since there's more than one
> useful MonadPlus instance for MaybeT it probably still wouldn't be
> right for everyone.

Umh, there is a MonadPlus instance in the package?

http://hackage.haskell.org/packages/archive/MaybeT/0.1.2/doc/html/Control-Monad-Maybe.html

(It's the one based on the Maybes.)

- Benja