scoping with lambda in loops

[Dave Benjamin]

"martin z" <pxtl at hotmail.com> wrote in message
news:KvP9b.49089$DZ.34699 at news04.bloor.is.net.cable.rogers.com...
> > a = []
> > for index in range(5):
> >     a.append(lambda index=index: index)
> >
> > or maybe more concisely
> >
> > a = [lambda index=index: index for index in range(5)]
>
> You know how Python is supposed to be executable pseudocode?  Well that
> stuff is farking ugly.  If I handed pseudocode like that into any TA in
one
> of my classes, I'd be toast.  Is there any way to do that in a legible
> manner?

The following reads pretty well to me:

>>> produce_value = lambda value: lambda: value
>>> a = [produce_value(index) for index in range(5)]
>>> a[3]()
3

Dave