Rudimentary Currying and Partial Application in Python

http://gist.github.com/128202

by ighost • 17 years ago

13 4 17 years ago

gist.github.com

jmillikin• 17 years ago

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.

ighost2• 17 years ago

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

brutimus• 17 years ago

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...

ighost2• 17 years ago

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

Rudimentary Currying and Partial Application in Python

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