[arethuza]

Do you then have to have conditional code in a.__coerce__(b) to check the type of b and do the appropriate thing?

[zephyrfalcon]

Basically yes. Although there are ways around it: http://www.artima.com/weblogs/viewpost.jsp?thread=101605

[arethuza]

Thanks - that looks quite neat.

It seems to me there is a big difference between having a language that is truly based on multimethods and one where it is possible to implement multimethods fairly easily - from what I can see Python looks more like the latter.