Please do write about non-toy examples!

On Fri, Aug 15, 2014 at 10:55 AM, Matthew Rocklin <mrocklin@gmail.com> wrote:

I've definitely seen homegrown solutions like Alexander talks about in a variety of projects.  It has popped up a few times in SymPy.  

My implementation was influenced somewhat by Julia's solution which seems fairly sober.  Multiple dispatch has demonstrated value in that community.

I used the multipledispatch library in a few of my projects.  I can provide examples of where it's been helpful if desired.

On Fri, Aug 15, 2014 at 10:47 AM, Alexander Belopolsky <alexander.belopolsky@gmail.com> wrote:

On Fri, Aug 15, 2014 at 1:28 PM, Guido van Rossum <guido@python.org> wrote:

Are there good uses of singledispatch in the wild even?

In one of my projects, I have a todo item to convert a homegrown {type:func} dictionary based dispatch to singledispatch.  It has been open for 5 months already.  I wouldn't be surprised if others had something similar: a good-enough (and probably buggy) solution that is not bad enough to justify adding extra dependency in 2.x or replacing with a 3.x only solution.

Multiple dispatch is much harder to get right or even "good enough," so I don't think singledispatch popularity or lack thereof is a good predictor for multipledispatch.

--
--Guido van Rossum (python.org/~guido)

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