Oct. 20, 2003
4:11 p.m.
At 05:45 PM 10/20/03 +0200, Alex Martelli wrote:
On Monday 20 October 2003 04:30 pm, Guido van Rossum wrote:
We are indeed sure (sadly) that list comprehensions leak control variable names.
But they shouldn't. It can be fixed by renaming them (e.g. numeric names with a leading dot).
Hmmm, sorry?
[.2 for .2 in range(3)] SyntaxError: can't assign to literal
I think I don't understand what you mean.
He was talking about having the bytecode compiler generate "hidden" names for the variables... ones that can't be used from Python. There's one drawback there, however... If you're stepping through the listcomp generation with a debugger, you won't be able to print the current item in the list, as (I believe) is possible now.