Parameterized Functions without Classes

Christian Tismer tismer at stackless.com
Fri Jun 25 19:46:25 CEST 2004


Oliver Fromme wrote:

> Christian Tismer <tismer at stackless.com> wrote:
>  > just as a small comment on the side-effects of the
>  > rather new concept of local functions with access to
>  > their scope:
>  > [...]
>  > def _converter(scale):
>  >     def convert(arg):
>  >         return scale * arg
>  >     return convert
> 
> In what way is that different from using an ordinary lambda
> function?  i.e.:

There is no difference than the existing differences
between lambdas and def'ed functions.
The scope rules are the same.

> Of course, the use of lambda functions is very limited
> because (unfortunately) they can contain only one single
> expression.  But other than that, it's pretty much the
> same concept, isn't it?

Lambdas were not the topic, since they are a deprecated
feature, but sure it works.
The intent of my post was to show a "clean" way to do
things classless, directed to newcomers.
It was not about showing all possible (and unrecommended)
ways to do it. That would have filled 5 pages :-)

ciao - chris

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