Idea: "Frozen" inner function

[Michael Butscher]

Steve Horne wrote:
> On Mon, 27 Nov 2006 20:04:10 +0100, Michael Butscher
> <mbutscher at gmx.de> wrote:
> 
> >Steve Horne wrote:
> 
> >> Maybe Python is doing the (1) thing, but that leaves me wondering how
> >> come my existing code is working.
> >
> >Before closures were introduced in Python (about 2.2 or so), it was a 
> >common idiom to write:
> >
> >lambda a=a: ...
> >
> >to access an outer variable a. Maybe you are using something like that.
> 
> No. I used to, but it was a big relief when I didn't need to any more.
> 
> I'm not so sure now that I change variables much after using them like
> this.

Me too :-)

It seems that full-blown closures with live access to outer variables 
(as long as the outer function exists) are of much rarer need than one 
might think at first.



Michael