Curry (aka partial function):
Currying 是 functional programming 中把一個多參數的函式轉換成較少參數的函式的技巧。  

Use "partial" in python2.5
{{{
>>> import functools
>>> def add3(x,y,z):
...     return x+y+z
... 
>>> curry = functools.partial
>>> twoAdd2 = curry(add3,2)
>>> twoAdd2(3,4)
9
>>> twoAddfiveAdd = curry(add3,2,5)
>>> twoAddfiveAdd(3)
10
}}}



implemented with lambda function (from: http://snippets.dzone.com/posts/show/2375):
{{{
curry = lambda func, *args, **kw:\
         lambda *p, **n:\
         func(*args + p, **dict(kw.items() + n.items()))
}}}

Example:
{{{
>>> def add3(x,y,z):
...     return x+y+z
... 
>>> twoAdd2 = curry(add3,2)
>>> twoAdd2(3,4)
9
>>> 
>>> twoAddfiveAdd = curry(add3,2,5)
>>> twoAddfiveAdd(3)
10
}}}

Other implementation: http://aspn.activestate.com/ASPN/Cookbook/Python/Recipe/52549
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CategoryCookbook