Rudimentary Currying and Partial Application in Python

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13 pointsighost4 comments

http://docs.python.org/library/functools.html#functools.part...

This already exists in the standard library as functools.partial, except the stdlib version is better in nearly every way.

I agree, but this "rudimentary" version is easier to understand for someone new to functional programming. It trades generality for pedagogical clarity.

The one place where the functools.partial failed me was in partialing on class methods. functools.partial actually gives you a callable class, instead of the functional closure that this example gives you (though I don't really consider this to be that great of an example). When a class is instantiated, the method functions (unbound methods) are turned into bound methods, something a class can't be. Guido talks about this a bit whole process here... http://python-history.blogspot.com/2009/02/first-class-every...

So python guys are still looking for the One True Way to do this? How unpythonic.

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