i=2; lst=[i**=2 while i<1000]

D H x at y.z
Tue Dec 6 15:17:06 CET 2005

Daniel Schüle wrote:
> Hello NG,
> I am wondering if there were proposals or previous disscussions in this 
> NG considering using 'while' in comprehension lists
> # pseudo code
> i=2
> lst=[i**=2 while i<1000]
> of course this could be easily rewritten into
> i=2
> lst=[]
> while i<1000:
>     i**=2
>     lst.append(i)

That would loop endlessly since you don't increment i.
You can use i**=2 for i in range(1000) instead

More information about the Python-list mailing list