Let's Talk About Lambda Functions!
Ian Bicking
ianb at colorstudy.com
Tue Jul 30 20:53:38 EDT 2002
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Tue Jul 30 20:53:38 EDT 2002
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On Tue, 2002-07-30 at 18:22, John Roth wrote: > > A method is just a function that is bound to a class variable. So you > > can do something like: > > > > class X: > > pass > > > > X.func = lambda self, x: x * 2 > > x = X() > > x.func(10) > > ==> 20 > > > > In fact, you can even do: > > > > class X: > > func = lambda self, x: x * 2 > > Unfortunately, that won't work. The word 'self' is not > magic - using it doesn't convert a function to a method. Fortunately it does work! You didn't read my first sentence. Those (working) examples don't rely on the name "self" in the argument list. They rely on the fact that a function is being put in a *class* attribute (this doesn't work the same way if you put it in an instance attribute). Ian
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