Partial function application (or "currying") is the act of taking a function
with two or more parameters, and applying some of the arguments in order to
make a new function. The "hello world" example for this seems to be this:
Let's say you have a function called `add`, that takes two parameters:
>>> def add(left, right):
... return left + right
Now let's say you want a function that always adds 2 to a number you give
it. You can use partial function application to do this:
>>> from functools import partial
>>> add2 = partial(add, right=2)
Now, you have a new function, `add2`, that takes one parameter:
>>> add2(4)
6
---
Paul Woolcock
[email protected]
On Mon, Jul 18, 2011 at 6:13 AM, Kurian Thayil <[email protected]>
wrote:
>
> Hi,
>
> I am a newbie in python and would like to learn GUI programming. I would
like
> to know what exactly is Partial Function Applicaton (functool.partial())?
Or
> how is it advantageous compared to normal functions? Or is there any
> advantange? Thanks in advance.
>
> Regards,
> Kurian Thayil.
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> http://mail.python.org/mailman/listinfo/python-list
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