parameterized functions: a question of style
bdesth at nospam.free.fr
Tue Aug 13 05:48:27 CEST 2002
Peter Hansen wrote:
> Blair Hall wrote:
>>Suppose (just for arguments sake) I need various functions of the form
>>y = x**n, where n is a
>>parameter, ie I want n to be part of the function definition, not an
>>argument to it!
>>I am tempted to write
>> def _fn(x):
>> return x**n
>> return _fn
>>The only alternative I can think of to this would be inheritance
>>This solution leaves me with a class, not a function (which is what I
>>intended to have), so there would be a further step needed to export
>>the class methods as functions.
> The further step would simply be to define __call__() methods in the
> classes to make the instances callable. Then you have "functions"
> in the sense that you probably need them.
I'd say the first solution (FP style) is much more simple and readable,
and so much more pythonic...
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